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1211200102212 = 2231746712713609
BaseRepresentation
bin10001101000000001001…
…001101101111101000100
311021210022121200020211220
4101220001021231331010
5124321014211232322
62324230113400340
7153335445000162
oct21500111557504
94253277606756
101211200102212
11427737977711
121768a45690b0
138a2a5b04019
144289dc06232
152178d10455c
hex11a0126df44

1211200102212 has 48 divisors (see below), whose sum is σ = 2998784617920. Its totient is φ = 379170644992.

The previous prime is 1211200102183. The next prime is 1211200102223. The reversal of 1211200102212 is 2122010021121.

It is a junction number, because it is equal to n+sod(n) for n = 1211200102191 and 1211200102200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6261537 + ... + 6452072.

It is an arithmetic number, because the mean of its divisors is an integer number (62474679540).

Almost surely, 21211200102212 is an apocalyptic number.

1211200102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211200102212 is an abundant number, since it is smaller than the sum of its proper divisors (1787584515708).

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

1211200102212 is a wasteful number, since it uses less digits than its factorization.

1211200102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714100 (or 12714098 counting only the distinct ones).

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

Adding to 1211200102212 its reverse (2122010021121), we get a palindrome (3333210123333).

The spelling of 1211200102212 in words is "one trillion, two hundred eleven billion, two hundred million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 467 934 1401 1868 2802 5604 7939 15878 23817 31756 47634 95268 12713609 25427218 38140827 50854436 76281654 152563308 216131353 432262706 648394059 864525412 1296788118 2593576236 5937255403 11874510806 17811766209 23749021612 35623532418 71247064836 100933341851 201866683702 302800025553 403733367404 605600051106 1211200102212