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111210010212 = 22377118646883
BaseRepresentation
bin110011110010010100…
…0100001011001100100
3101122001102020212100010
41213210220201121210
53310224230311322
6123031132250220
711014613330010
oct1474450413144
9348042225303
10111210010212
1143189173754
1219678010970
13a6440b7792
14554db9b540
152d5d45e20c
hex19e4a21664

111210010212 has 48 divisors (see below), whose sum is σ = 300736945152. Its totient is φ = 31326761760.

The previous prime is 111210010183. The next prime is 111210010259. The reversal of 111210010212 is 212010012111.

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 15 ways as a sum of consecutive naturals, for example, 9317478 + ... + 9329405.

It is an arithmetic number, because the mean of its divisors is an integer number (6265353024).

Almost surely, 2111210010212 is an apocalyptic number.

111210010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111210010212 is an abundant number, since it is smaller than the sum of its proper divisors (189526934940).

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

111210010212 is a wasteful number, since it uses less digits than its factorization.

111210010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18646968 (or 18646966 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111210010212 its reverse (212010012111), we get a palindrome (323220022323).

The spelling of 111210010212 in words is "one hundred eleven billion, two hundred ten million, ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 71 84 142 213 284 426 497 852 994 1491 1988 2982 5964 18646883 37293766 55940649 74587532 111881298 130528181 223762596 261056362 391584543 522112724 783169086 1323928693 1566338172 2647857386 3971786079 5295714772 7943572158 9267500851 15887144316 18535001702 27802502553 37070003404 55605005106 111210010212