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211012212012 = 22372512050143
BaseRepresentation
bin1100010010000101001…
…1101101010100101100
3202011122210201000110120
43010201103231110230
511424123111241022
6240534312004540
721150036131250
oct3044123552454
9664583630416
10211012212012
1181542990068
1234a8b690750
1316b8a931164
14a2da850260
155750126d5c
hex31214ed52c

211012212012 has 24 divisors (see below), whose sum is σ = 562699232256. Its totient is φ = 60289203408.

The previous prime is 211012211983. The next prime is 211012212041. The reversal of 211012212012 is 210212210112.

It is an interprime number because it is at equal distance from previous prime (211012211983) and next prime (211012212041).

It is a junction number, because it is equal to n+sod(n) for n = 211012211982 and 211012212000.

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 7 ways as a sum of consecutive naturals, for example, 1256024988 + ... + 1256025155.

It is an arithmetic number, because the mean of its divisors is an integer number (23445801344).

Almost surely, 2211012212012 is an apocalyptic number.

It is an amenable number.

211012212012 is an abundant number, since it is smaller than the sum of its proper divisors (351687020244).

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

211012212012 is a wasteful number, since it uses less digits than its factorization.

211012212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512050157 (or 2512050155 counting only the distinct ones).

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

Adding to 211012212012 its reverse (210212210112), we get a palindrome (421224422124).

The spelling of 211012212012 in words is "two hundred eleven billion, twelve million, two hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2512050143 5024100286 7536150429 10048200572 15072300858 17584351001 30144601716 35168702002 52753053003 70337404004 105506106006 211012212012