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211011212012 = 221723511319909
BaseRepresentation
bin1100010010000100111…
…1111001001011101100
3202011122201211012201112
43010201033321023230
511424122332241022
6240534234331152
721150024464636
oct3044117711354
9664581735645
10211011212012
1181542367817
1234a8b289ab8
1316b8a670c43
14a2da66da56
15574eeca8e2
hex31213f92ec

211011212012 has 24 divisors (see below), whose sum is σ = 391157968320. Its totient is φ = 99257081600.

The previous prime is 211011211991. The next prime is 211011212033. The reversal of 211011212012 is 210212110112.

211011212012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211011211991) and next prime (211011212033).

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 7 ways as a sum of consecutive naturals, for example, 500087 + ... + 819822.

It is an arithmetic number, because the mean of its divisors is an integer number (16298248680).

Almost surely, 2211011212012 is an apocalyptic number.

It is an amenable number.

211011212012 is a deficient number, since it is larger than the sum of its proper divisors (180146756308).

211011212012 is a wasteful number, since it uses less digits than its factorization.

211011212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322281 (or 1322279 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211011212012 its reverse (210212110112), we get a palindrome (421223322124).

The spelling of 211011212012 in words is "two hundred eleven billion, eleven million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 17 34 68 2351 4702 9404 39967 79934 159868 1319909 2639818 5279636 22438453 44876906 89753812 3103106059 6206212118 12412424236 52752803003 105505606006 211011212012