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12102002111220 = 22357169916959559
BaseRepresentation
bin1011000000011011011110…
…0010010111001011110100
31120211221101100001020022120
42300012313202113023310
53041234400020024340
641423325533155540
72356224615444660
oct260066742271364
946757340036276
1012102002111220
11394648076977a
12143554802bbb0
1369a2a1c35608
142dba508c78a0
1515ec02cd84d0
hexb01b78972f4

12102002111220 has 96 divisors (see below), whose sum is σ = 38749202688000. Its totient is φ = 2764543630464.

The previous prime is 12102002111201. The next prime is 12102002111233. The reversal of 12102002111220 is 2211120020121.

12102002111220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12102002111220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7766200 + ... + 9193359.

It is an arithmetic number, because the mean of its divisors is an integer number (403637528000).

Almost surely, 212102002111220 is an apocalyptic number.

12102002111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102002111220 is an abundant number, since it is smaller than the sum of its proper divisors (26647200576780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12102002111220 is a wasteful number, since it uses less digits than its factorization.

12102002111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961277 (or 16961275 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12102002111220 its reverse (2211120020121), we get a palindrome (14313122131341).

The spelling of 12102002111220 in words is "twelve trillion, one hundred two billion, two million, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 1699 3398 5097 6796 8495 10194 11893 16990 20388 23786 25485 33980 35679 47572 50970 59465 71358 101940 118930 142716 178395 237860 356790 713580 16959559 33919118 50878677 67838236 84797795 101757354 118716913 169595590 203514708 237433826 254393385 339191180 356150739 474867652 508786770 593584565 712301478 1017573540 1187169130 1424602956 1780753695 2374338260 3561507390 7123014780 28814290741 57628581482 86442872223 115257162964 144071453705 172885744446 201700035187 288142907410 345771488892 403400070374 432214361115 576285814820 605100105561 806800140748 864428722230 1008500175935 1210200211122 1728857444460 2017000351870 2420400422244 3025500527805 4034000703740 6051001055610 12102002111220