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102212020212012 = 22324169249336187
BaseRepresentation
bin10111001111011000010111…
…001010000001000100101100
3111101220101002102121002202200
4113033120113022001010230
5101344120204133241022
61001215315344421500
730346401100542234
oct2717302712010454
9441811072532680
10102212020212012
112a627968825377
12b56945a917890
1345057240b9a69
141b35133d42cc4
15bc3b81135bac
hex5cf61728112c

102212020212012 has 36 divisors (see below), whose sum is σ = 264670962910536. Its totient is φ = 33239681369280.

The previous prime is 102212020211993. The next prime is 102212020212067. The reversal of 102212020212012 is 210212020212201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1022120202120122 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34624666618 + ... + 34624669569.

Almost surely, 2102212020212012 is an apocalyptic number.

102212020212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102212020212012 is an abundant number, since it is smaller than the sum of its proper divisors (162458942698524).

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

102212020212012 is a wasteful number, since it uses less digits than its factorization.

102212020212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69249336238 (or 69249336233 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102212020212012 its reverse (210212020212201), we get a palindrome (312424040424213).

The spelling of 102212020212012 in words is "one hundred two trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 69249336187 138498672374 207748008561 276997344748 415496017122 623244025683 830992034244 1246488051366 2492976102732 2839222783667 5678445567334 8517668351001 11356891134668 17035336702002 25553005053003 34070673404004 51106010106006 102212020212012