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12102100112200 = 2352731278850233
BaseRepresentation
bin1011000000011011110101…
…1000001101001101001000
31120211221122011110012101111
42300012331120031031020
53041240100112042300
641423343353500104
72356230215443060
oct260067530151510
946757564405344
1012102100112200
11394652101531a
121435574a11634
1369a2b9329267
142dba5d9183a0
1515ec0b6e59ba
hexb01bd60d348

12102100112200 has 96 divisors (see below), whose sum is σ = 33194331855360. Its totient is φ = 4015443340800.

The previous prime is 12102100112191. The next prime is 12102100112279. The reversal of 12102100112200 is 221100120121.

It is a super-2 number, since 2×121021001122002 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139381717 + ... + 139468516.

It is an arithmetic number, because the mean of its divisors is an integer number (345774290160).

Almost surely, 212102100112200 is an apocalyptic number.

12102100112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102100112200 is an abundant number, since it is smaller than the sum of its proper divisors (21092231743160).

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

12102100112200 is a wasteful number, since it uses less digits than its factorization.

12102100112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278850287 (or 278850278 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12102100112200 its reverse (221100120121), we get a palindrome (12323200232321).

The spelling of 12102100112200 in words is "twelve trillion, one hundred two billion, one hundred million, one hundred twelve thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 31 35 40 50 56 62 70 100 124 140 155 175 200 217 248 280 310 350 434 620 700 775 868 1085 1240 1400 1550 1736 2170 3100 4340 5425 6200 8680 10850 21700 43400 278850233 557700466 1115400932 1394251165 1951951631 2230801864 2788502330 3903903262 5577004660 6971255825 7807806524 8644357223 9759758155 11154009320 13942511650 15615613048 17288714446 19519516310 27885023300 34577428892 39039032620 43221786115 48798790775 55770046600 60510500561 69154857784 78078065240 86443572230 97597581550 121021001122 172887144460 195195163100 216108930575 242042002244 302552502805 345774288920 390390326200 432217861150 484084004488 605105005610 864435722300 1210210011220 1512762514025 1728871444600 2420420022440 3025525028050 6051050056100 12102100112200