Finite Group Databasebeta

← C19×#61012 #18066971

Subgroups — C19×#61012 #18066971

Order 4864.

1776 conjugacy classes of subgroups.

The subgroup lattice has 614 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C19×#3509C211yesmaximal, characteristic, complemented
2C19×#3508C211yesmaximal, characteristic
3C19×#3260C214yesmaximal, complemented
4C19×#3231C212yesmaximal, complemented
5C19×#3228C212yesmaximal, complemented
6C19×#3208C212yesmaximal, complemented
7C19×#3206C212yesmaximal, complemented
8C19×#3200C214yesmaximal, complemented
9C19×#3182C212yesmaximal, complemented
10C19×#3167C212yesmaximal, complemented
11C19×#3126C214yesmaximal, complemented
12C19×#3123C214yesmaximal, complemented
13C19×#2922C211yesmaximal, characteristic, complemented
14C19×#559—22no—
15C19×#557—22no—
16C19×#556—22no—
17C19×#552—22no—
18C19×#552—22no—
19C19×#550—22no—
20C19×#546—22no—
21C19×#546—22no—
22C19×#541C2212yes—
23C19×#541C2212yescomplemented
24C19×#540C2212yes—
25C19×#540C2212yes—
26C19×#536C2212yes—
27C19×#535C2212yes—
28C19×#533C2212yes—
29C19×#533C2211yescharacteristic
30C19×#533C2212yescomplemented
31C19×#533C2211yescharacteristic, complemented
32C19×#532C2212yes—
33C19×#532C2212yes—
34C2×C19×C4⋊Q8C2211yescharacteristic, complemented
35C2×C19×#127C2211yescharacteristic
36C19×#519C2212yescomplemented
37C19×#518C2212yes—
38C4×#41×C19C2211yescharacteristic
39C19×#500C2212yescomplemented
40C19×#498C2212yescomplemented
41C19×#492C2212yes—
42C19×#492C2212yes—
43C19×#487C2212yescomplemented
44C19×#487C2212yescomplemented
45C19×#486C2212yes—
46C19×#486C2212yes—
47C19×#485C2218yes—
48C19×#482C2218yescomplemented
49C19×#479C2218yescomplemented
50C19×#478C2218yescomplemented
51C19×#468C2218yescomplemented
52C19×#465C2218yescomplemented
53C19×#461C2218yescomplemented
54C19×#460C2218yes—
55C19×#450C2218yes—
56C19×#448C2218yescomplemented
57C19×#440C2218yescomplemented
58C4×SD16×C19C2218yescomplemented
59C19×#433C2212yes—
60C19×#433C2212yescomplemented
61C19×#431C2212yes—
62C19×#431C2212yescomplemented
63C19×#424C2212yescomplemented
64C19×#408C2212yes—
65C4×M16×C19C2211yescharacteristic, complemented
66C2×C4×C8×C19C2211yescharacteristic, complemented
67C2×#41×C19—22no—
68C2×#41×C19—22no—
69C2×#41×C19C2311yescharacteristic
70C22×Q8×C19C2312yes—
71C22×D4×C19—22no—
72C22×D4×C19C2312yes—
73C2×SD16×C19C2318yes—
74C2×SD16×C19C2318yes—
75C2×M16×C19C2312yes—
76C22×C8×C19C2312yes—
77C19×C4⋊Q8—22no—
78C19×C4⋊Q8—22no—
79C19×C4⋊Q8C2312yes—
80C19×C4⋊Q8C2312yes—
81C19×C4⋊Q8C2312yes—
82C19×C4⋊Q8C2312yes—
83C19×#127—22no—
84C19×#127—22no—
85C19×#127C2312yes—
86C19×#127C2312yes—
87C19×#126—24no—
88C19×#126—24no—
89C19×#125—24no—
90C19×#125—24no—
91C19×#125—22no—
92C19×#125—22no—
93C19×#125C2312yes—
94C19×#125C2312yes—
95C19×#124—22no—
96C19×#124—22no—
97C19×#124—22no—
98C19×#124—22no—
99C19×#123—22no—
100C19×#123—22no—
101C19×#123—24no—
102C19×#123—24no—
103C19×C22⋊Q8—22no—
104C19×C22⋊Q8—22no—
105C19×C22⋊Q8—22no—
106C19×C22⋊Q8—22no—
107C19×C22⋊Q8C2314yes—
108C19×C22⋊Q8C2314yes—
109C19×#121—22no—
110C19×#121—22no—
111C19×#121—24no—
112C19×#121—24no—
113C19×#121C2314yes—
114C19×#121C2314yes—
115C19×#120—22no—
116C19×#120—22no—
117C4×Q8×C19—24no—
118C4×Q8×C19—22no—
119C4×Q8×C19—22no—
120C4×Q8×C19—22no—
121C4×Q8×C19—22no—
122C4×Q8×C19D412yes—
123C4×Q8×C19C2314yes—
124C4×Q8×C19C2314yes—
125C4×D4×C19—24no—
126C4×D4×C19—22no—
127C4×D4×C19—22no—
128C4×D4×C19D412yes—
129C4×D4×C19D412yes—
130C4×D4×C19D412yes—
131C4×D4×C19C2314yes—
132C4×D4×C19C2314yes—
133C19×#117—22no—
134C19×#117—22no—
135C19×#117—24no—
136C19×#117C2312yes—
137C19×#117C2312yes—
138C19×#117C2311yescharacteristic
139C19×#117C2311yescharacteristic
140C19×#117C2311yescharacteristic
141C2×C4⋊C4×C19—22no—
142C2×C22⋊C4×C19—24no—
143C2×C42×C19C2311yescharacteristic
144C2×C42×C19C2311yescharacteristic
145C2×C42×C19C2311yescharacteristic
146C19×#107C2318yes—
147C19×#106C2318yes—
148C19×C4⋊C8C2314yes—
149C19×C4⋊C8C2314yes—
150C19×#103C2318yes—
151C19×#103C2318yes—
152C19×#102C2318yes—
153C19×#102C2318yes—
154C19×C22⋊C8C2314yes—
155C19×C22⋊C8C2314yes—
156C19×#97C2312yes—
157C4×C8×C19C2312yes—
158C4×C8×C19C2312yes—
159C4×C8×C19C2312yes—
160C24×C19—22no—
161#41×C19—42no—
162#41×C19—84no—
163#41×C19—84no—
164C2×Q8×C19—22no—
165C2×Q8×C19—22no—
166C2×Q8×C19—22no—
167C2×Q8×C19—44no—
168C2×Q8×C19C2×D411yescharacteristic
169C2×Q8×C19C2414yes—
170C2×D4×C19—24no—
171C2×D4×C19—24no—
172C2×D4×C19—22no—
173C2×D4×C19—22no—
174C2×D4×C19—22no—
175C2×D4×C19—24no—
176C2×D4×C19—44no—
177C2×D4×C19—84no—
178C2×D4×C19C2×D411yescharacteristic
179C2×D4×C19C2×D411yescharacteristic
180C2×D4×C19C2×D411yescharacteristic
181C2×D4×C19C2414yes—
182C22×C4×C19—22no—
183C22×C4×C19—24no—
184C22×C4×C19—24no—
185C22×C4×C19C2×D412yes—
186C22×C4×C19C2×D412yes—
187C22×C4×C19C2×D412yes—
188C22×C4×C19C2411yescharacteristic
189C22×C4×C19C2411yescharacteristic
190C22×C4×C19C2411yescharacteristic
191SD16×C19—48no—
192SD16×C19—48no—
193M16×C19—42no—
194C2×C8×C19—42no—
195C2×C8×C19C2414yes—
196C2×C8×C19C2414yes—
197C4⋊C4×C19—22no—
198C4⋊C4×C19—22no—
199C4⋊C4×C19—24no—
200C4⋊C4×C19—22no—
201C4⋊C4×C19—24no—
202C4⋊C4×C19—24no—
203C4⋊C4×C19—22no—
204C4⋊C4×C19—24no—
205C4⋊C4×C19—24no—
206C4⋊C4×C19—24no—
207C4⋊C4×C19—24no—
208C4⋊C4×C19C2×D412yes—
209C4⋊C4×C19C2×D412yes—
210C4⋊C4×C19C2×D412yes—
211C4⋊C4×C19C2414yes—
212C4⋊C4×C19C2414yes—
213C22⋊C4×C19—22no—
214C22⋊C4×C19—22no—
215C22⋊C4×C19—24no—
216C22⋊C4×C19—24no—
217C22⋊C4×C19—24no—
218C22⋊C4×C19—24no—
219C22⋊C4×C19—24no—
220C22⋊C4×C19—24no—
221C22⋊C4×C19C2×D412yes—
222C22⋊C4×C19C2×D412yes—
223C22⋊C4×C19C2×D412yes—
224C42×C19—24no—
225C42×C19—24no—
226C42×C19—22no—
227C42×C19—22no—
228C42×C19C2×D412yes—
229C42×C19C2×D412yes—
230C42×C19C2×D412yes—
231C42×C19C2411yescharacteristic
232C42×C19C2411yescharacteristic
233C42×C19C2411yescharacteristic
234C42×C19C2411yescharacteristic
235#61012C1911yesmaximal, characteristic, direct product factor, Sylow
236C23×C19—24no—
237C23×C19—44no—
238C23×C19—84no—
239C23×C19C22×D411yescharacteristic
240C23×C19C22×D411yescharacteristic
241C23×C19C22×D411yescharacteristic
242Q8×C19—28no—
243Q8×C19—41no—
244Q8×C19—44no—
245Q8×C19—44no—
246Q8×C19—44no—
247D4×C19—28no—
248D4×C19—41no—
249D4×C19—41no—
250D4×C19—41no—
251D4×C19—44no—
252D4×C19—44no—
253D4×C19—44no—
254D4×C19—84no—
255D4×C19—84no—
256D4×C19—84no—
257C2×C4×C19—24no—
258C2×C4×C19—24no—
259C2×C4×C19—24no—
260C2×C4×C19—22no—
261C2×C4×C19—22no—
262C2×C4×C19—22no—
263C2×C4×C19—24no—
264C2×C4×C19—24no—
265C2×C4×C19—24no—
266C2×C4×C19—44no—
267C2×C4×C19—84no—
268C2×C4×C19—84no—
269C2×C4×C19C22×D411yescharacteristic
270C2×C4×C19C22×D411yescharacteristic
271C2×C4×C19C22×D412yes—
272C2×C4×C19C22×D412yes—
273C2×C4×C19C22×D411yescharacteristic
274C2×C4×C19C22×D412yes—
275C2×C4×C19C22×D412yes—
276C2×C4×C19C2511yescharacteristic
277C8×C19—24no—
278C8×C19—24no—
279#3509C2×C1911yescharacteristic, complemented
280#3508C2×C1911yescharacteristic
281#3260C2×C1914yescomplemented
282#3231C2×C1912yescomplemented
283#3228C2×C1912yescomplemented
284#3208C2×C1912yescomplemented
285#3206C2×C1912yescomplemented
286#3200C2×C1914yescomplemented
287#3182C2×C1912yescomplemented
288#3167C2×C1912yescomplemented
289#3126C2×C1914yescomplemented
290#3123C2×C1914yescomplemented
291#2922C2×C1911yescharacteristic, complemented
292C22×C19—21no—
293C22×C19—21no—
294C22×C19—21no—
295C22×C19—22no—
296C22×C19—22no—
297C22×C19—22no—
298C22×C19—44no—
299C22×C19—44no—
300C22×C19—44no—
301C22×C19—164no—
302C22×C19C23×D411yescharacteristic
303C4×C19—21no—
304C4×C19—21no—
305C4×C19—21no—
306C4×C19—22no—
307C4×C19—22no—
308C4×C19—22no—
309C4×C19—44no—
310C4×C19—44no—
311C4×C19—44no—
312C4×C19#57714yes—
313C4×C19#58512yes—
314#559—22no—
315#557—22no—
316#556—22no—
317#552—22no—
318#552—22no—
319#550—22no—
320#546—22no—
321#546—22no—
322#541C22×C1912yes—
323#541C22×C1912yescomplemented
324#540C22×C1912yes—
325#540C22×C1912yes—
326#536C22×C1912yes—
327#535C22×C1912yes—
328#533C22×C1912yes—
329#533C22×C1911yescharacteristic
330#533C22×C1912yescomplemented
331#533C22×C1911yescharacteristic, complemented
332#532C22×C1912yes—
333#532C22×C1912yes—
334C2×C4⋊Q8C22×C1911yescharacteristic, complemented
335C2×#127C22×C1911yescharacteristic
336#519C22×C1912yescomplemented
337#518C22×C1912yes—
338C4×#41C22×C1911yescharacteristic
339#500C22×C1912yescomplemented
340#498C22×C1912yescomplemented
341#492C22×C1912yes—
342#492C22×C1912yes—
343#487C22×C1912yescomplemented
344#487C22×C1912yescomplemented
345#486C22×C1912yes—
346#486C22×C1912yes—
347#485C22×C1918yes—
348#482C22×C1918yescomplemented
349#479C22×C1918yescomplemented
350#478C22×C1918yescomplemented
351#468C22×C1918yescomplemented
352#465C22×C1918yescomplemented
353#461C22×C1918yescomplemented
354#460C22×C1918yes—
355#450C22×C1918yes—
356#448C22×C1918yescomplemented
357#440C22×C1918yescomplemented
358C4×SD16C22×C1918yescomplemented
359#433C22×C1912yes—
360#433C22×C1912yescomplemented
361#431C22×C1912yes—
362#431C22×C1912yescomplemented
363#424C22×C1912yescomplemented
364#408C22×C1912yes—
365C4×M16C22×C1911yescharacteristic, complemented
366C2×C4×C8C22×C1911yescharacteristic, complemented
367C2×C19—41no—
368C2×C19—41no—
369C2×C19—41no—
370C2×C19—84no—
371C2×C19#344911yescharacteristic
372C2×C19C2×#57712yes—
373C2×#41—22no—
374C2×#41—22no—
375C2×#41C23×C1911yescharacteristic
376C22×Q8C23×C1912yes—
377C22×D4—22no—
378C22×D4C23×C1912yes—
379C2×SD16C23×C1918yes—
380C2×SD16C23×C1918yes—
381C2×M16C23×C1912yes—
382C22×C8C23×C1912yes—
383C4⋊Q8—22no—
384C4⋊Q8—22no—
385C4⋊Q8C23×C1912yes—
386C4⋊Q8C23×C1912yes—
387C4⋊Q8C23×C1912yes—
388C4⋊Q8C23×C1912yes—
389#127—22no—
390#127—22no—
391#127C23×C1912yes—
392#127C23×C1912yes—
393#126—24no—
394#126—24no—
395#125—24no—
396#125—24no—
397#125—22no—
398#125—22no—
399#125C23×C1912yes—
400#125C23×C1912yes—
401#124—22no—
402#124—22no—
403#124—22no—
404#124—22no—
405#123—22no—
406#123—22no—
407#123—24no—
408#123—24no—
409C22⋊Q8—22no—
410C22⋊Q8—22no—
411C22⋊Q8—22no—
412C22⋊Q8—22no—
413C22⋊Q8C23×C1914yes—
414C22⋊Q8C23×C1914yes—
415#121—22no—
416#121—22no—
417#121—24no—
418#121—24no—
419#121C23×C1914yes—
420#121C23×C1914yes—
421#120—22no—
422#120—22no—
423C4×Q8—24no—
424C4×Q8—22no—
425C4×Q8—22no—
426C4×Q8—22no—
427C4×Q8—22no—
428C4×Q8D4×C1912yes—
429C4×Q8C23×C1914yes—
430C4×Q8C23×C1914yes—
431C4×D4—24no—
432C4×D4—22no—
433C4×D4—22no—
434C4×D4D4×C1912yes—
435C4×D4D4×C1912yes—
436C4×D4D4×C1912yes—
437C4×D4C23×C1914yes—
438C4×D4C23×C1914yes—
439#117—22no—
440#117—22no—
441#117—24no—
442#117C23×C1912yes—
443#117C23×C1912yes—
444#117C23×C1911yescharacteristic
445#117C23×C1911yescharacteristic
446#117C23×C1911yescharacteristic
447C2×C4⋊C4—22no—
448C2×C22⋊C4—24no—
449C2×C42C23×C1911yescharacteristic
450C2×C42C23×C1911yescharacteristic
451C2×C42C23×C1911yescharacteristic
452#107C23×C1918yes—
453#106C23×C1918yes—
454C4⋊C8C23×C1914yes—
455C4⋊C8C23×C1914yes—
456#103C23×C1918yes—
457#103C23×C1918yes—
458#102C23×C1918yes—
459#102C23×C1918yes—
460C22⋊C8C23×C1914yes—
461C22⋊C8C23×C1914yes—
462#97C23×C1912yes—
463C4×C8C23×C1912yes—
464C4×C8C23×C1912yes—
465C4×C8C23×C1912yes—
466C19#6101211yescharacteristic, direct product factor, Sylow
467C24—22no—
468#41—42no—
469#41—84no—
470#41—84no—
471C2×Q8—22no—
472C2×Q8—22no—
473C2×Q8—22no—
474C2×Q8—44no—
475C2×Q8C2×D4×C1911yescharacteristic
476C2×Q8C24×C1914yes—
477C2×D4—24no—
478C2×D4—24no—
479C2×D4—22no—
480C2×D4—22no—
481C2×D4—22no—
482C2×D4—24no—
483C2×D4—44no—
484C2×D4—84no—
485C2×D4C2×D4×C1911yescharacteristic
486C2×D4C2×D4×C1911yescharacteristic
487C2×D4C2×D4×C1911yescharacteristic
488C2×D4C24×C1914yes—
489C22×C4—22no—
490C22×C4—24no—
491C22×C4—24no—
492C22×C4C2×D4×C1912yes—
493C22×C4C2×D4×C1912yes—
494C22×C4C2×D4×C1912yes—
495C22×C4C24×C1911yescharacteristic
496C22×C4C24×C1911yescharacteristic
497C22×C4C24×C1911yescharacteristic
498SD16—48no—
499SD16—48no—
500M16—42no—
501C2×C8—42no—
502C2×C8C24×C1914yes—
503C2×C8C24×C1914yes—
504C4⋊C4—22no—
505C4⋊C4—22no—
506C4⋊C4—24no—
507C4⋊C4—22no—
508C4⋊C4—24no—
509C4⋊C4—24no—
510C4⋊C4—22no—
511C4⋊C4—24no—
512C4⋊C4—24no—
513C4⋊C4—24no—
514C4⋊C4—24no—
515C4⋊C4C2×D4×C1912yes—
516C4⋊C4C2×D4×C1912yes—
517C4⋊C4C2×D4×C1912yes—
518C4⋊C4C24×C1914yes—
519C4⋊C4C24×C1914yes—
520C22⋊C4—22no—
521C22⋊C4—22no—
522C22⋊C4—24no—
523C22⋊C4—24no—
524C22⋊C4—24no—
525C22⋊C4—24no—
526C22⋊C4—24no—
527C22⋊C4—24no—
528C22⋊C4C2×D4×C1912yes—
529C22⋊C4C2×D4×C1912yes—
530C22⋊C4C2×D4×C1912yes—
531C42—24no—
532C42—24no—
533C42—22no—
534C42—22no—
535C42C2×D4×C1912yes—
536C42C2×D4×C1912yes—
537C42C2×D4×C1912yes—
538C42C24×C1911yescharacteristic
539C42C24×C1911yescharacteristic
540C42C24×C1911yescharacteristic
541C42C24×C1911yescharacteristic
542C23—24no—
543C23—44no—
544C23—84no—
545C23C22×D4×C1911yescharacteristic
546C23C22×D4×C1911yescharacteristic
547C23C22×D4×C1911yescharacteristic
548Q8—28no—
549Q8—41no—
550Q8—44no—
551Q8—44no—
552Q8—44no—
553D4—28no—
554D4—41no—
555D4—41no—
556D4—41no—
557D4—44no—
558D4—44no—
559D4—44no—
560D4—84no—
561D4—84no—
562D4—84no—
563C2×C4—24no—
564C2×C4—24no—
565C2×C4—24no—
566C2×C4—22no—
567C2×C4—22no—
568C2×C4—22no—
569C2×C4—24no—
570C2×C4—24no—
571C2×C4—24no—
572C2×C4—44no—
573C2×C4—84no—
574C2×C4—84no—
575C2×C4C22×D4×C1911yescharacteristic
576C2×C4C22×D4×C1911yescharacteristic
577C2×C4C22×D4×C1912yes—
578C2×C4C22×D4×C1912yes—
579C2×C4C22×D4×C1911yescharacteristic
580C2×C4C22×D4×C1912yes—
581C2×C4C22×D4×C1912yes—
582C2×C4C25×C1911yescharacteristic
583C8—24no—
584C8—24no—
585C22—21no—
586C22—21no—
587C22—21no—
588C22—22no—
589C22—22no—
590C22—22no—
591C22—44no—
592C22—44no—
593C22—44no—
594C22—164no—
595C22C23×D4×C1911yescharacteristic
596C4—21no—
597C4—21no—
598C4—21no—
599C4—22no—
600C4—22no—
601C4—22no—
602C4—44no—
603C4—44no—
604C4—44no—
605C4C19×#57714yes—
606C4C19×#58512yes—
607C2—41no—
608C2—41no—
609C2—41no—
610C2—84no—
611C2C19×#344911yescharacteristic
612C2C2×C19×#57712yes—
subgroupG/H
center, socleC22×C19C23×D4
commutator, Frattini, cosocleC2×C4C25×C19
prime radicalC19×#3508C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C19 ◁ C4×#41×C19 ◁ G

Complements

Splittings G = N ⋊ H with N normal; H ≅ G/N.

NH ≅ G/Ntype
1. C19×#3509C2semidirect
3. C19×#3260C2semidirect
4. C19×#3231C2semidirect
5. C19×#3228C2semidirect
6. C19×#3208C2semidirect
7. C19×#3206C2semidirect
8. C19×#3200C2semidirect
9. C19×#3182C2semidirect
10. C19×#3167C2semidirect
11. C19×#3126C2semidirect
12. C19×#3123C2semidirect
13. C19×#2922C2semidirect
23. C19×#541C22semidirect
30. C19×#533C22semidirect
31. C19×#533C22semidirect
34. C2×C19×C4⋊Q8C22semidirect
36. C19×#519C22semidirect
39. C19×#500C22semidirect
40. C19×#498C22semidirect
43. C19×#487C22semidirect
44. C19×#487C22semidirect
48. C19×#482C22semidirect
49. C19×#479C22semidirect
50. C19×#478C22semidirect
51. C19×#468C22semidirect
52. C19×#465C22semidirect
53. C19×#461C22semidirect
56. C19×#448C22semidirect
57. C19×#440C22semidirect
58. C4×SD16×C19C22semidirect
60. C19×#433C22semidirect
62. C19×#431C22semidirect
63. C19×#424C22semidirect
65. C4×M16×C19C22semidirect
66. C2×C4×C8×C19C22semidirect
235. #61012C19direct (N × H)
279. #3509C2×C19semidirect
281. #3260C2×C19semidirect
282. #3231C2×C19semidirect
283. #3228C2×C19semidirect
284. #3208C2×C19semidirect
285. #3206C2×C19semidirect
286. #3200C2×C19semidirect
287. #3182C2×C19semidirect
288. #3167C2×C19semidirect
289. #3126C2×C19semidirect
290. #3123C2×C19semidirect
291. #2922C2×C19semidirect
323. #541C22×C19semidirect
330. #533C22×C19semidirect
331. #533C22×C19semidirect
334. C2×C4⋊Q8C22×C19semidirect
336. #519C22×C19semidirect
339. #500C22×C19semidirect
340. #498C22×C19semidirect
343. #487C22×C19semidirect
344. #487C22×C19semidirect
348. #482C22×C19semidirect
349. #479C22×C19semidirect
350. #478C22×C19semidirect
351. #468C22×C19semidirect
352. #465C22×C19semidirect
353. #461C22×C19semidirect
356. #448C22×C19semidirect
357. #440C22×C19semidirect
358. C4×SD16C22×C19semidirect
360. #433C22×C19semidirect
362. #431C22×C19semidirect
363. #424C22×C19semidirect
365. C4×M16C22×C19semidirect
366. C2×C4×C8C22×C19semidirect
466. C19#61012direct (N × H)

Maximal subgroups

By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.

subgroupindex
C19×#35092
C19×#35082
C19×#32602
C19×#32312
C19×#32282
C19×#32082
C19×#32062
C19×#32002
C19×#31822
C19×#31672
C19×#31262
C19×#31232
C19×#29222
#6101219