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12020120112 = 24371113250169
BaseRepresentation
bin10110011000111010…
…00111101000110000
31011000200222100221210
423030131013220300
5144104122320422
65304424520120
7603604222650
oct131435075060
934020870853
1012020120112
115109054170
1223b5620040
13119738a810
14820578360
154a53e710c
hex2cc747a30

12020120112 has 160 divisors (see below), whose sum is σ = 41692331520. Its totient is φ = 2881935360.

The previous prime is 12020120093. The next prime is 12020120149. The reversal of 12020120112 is 21102102021.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 77037 + ... + 173132.

It is an arithmetic number, because the mean of its divisors is an integer number (260577072).

Almost surely, 212020120112 is an apocalyptic number.

12020120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12020120112 is an abundant number, since it is smaller than the sum of its proper divisors (29672211408).

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

12020120112 is a wasteful number, since it uses less digits than its factorization.

12020120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250211 (or 250205 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020120112 its reverse (21102102021), we get a palindrome (33122222133).

The spelling of 12020120112 in words is "twelve billion, twenty million, one hundred twenty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 11 12 13 14 16 21 22 24 26 28 33 39 42 44 48 52 56 66 77 78 84 88 91 104 112 132 143 154 156 168 176 182 208 231 264 273 286 308 312 336 364 429 462 528 546 572 616 624 728 858 924 1001 1092 1144 1232 1456 1716 1848 2002 2184 2288 3003 3432 3696 4004 4368 6006 6864 8008 12012 16016 24024 48048 250169 500338 750507 1000676 1501014 1751183 2001352 2751859 3002028 3252197 3502366 4002704 5253549 5503718 6004056 6504394 7004732 8255577 9756591 10507098 11007436 12008112 13008788 14009464 16511154 19263013 19513182 21014196 22014872 22765379 26017576 28018928 33022308 35774167 38526026 39026364 42028392 44029744 45530758 52035152 57789039 66044616 68296137 71548334 77052052 78052728 84056784 91061516 107322501 115578078 132089232 136592274 143096668 154104104 156105456 182123032 214645002 231156156 250419169 273184548 286193336 308208208 364246064 429290004 462312312 500838338 546369096 572386672 751257507 858580008 924624624 1001676676 1092738192 1502515014 1717160016 2003353352 3005030028 4006706704 6010060056 12020120112