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13120012212 = 22347149315581
BaseRepresentation
bin11000011100000001…
…10111111110110100
31020212100121200021020
430032000313332310
5203332210342322
610005515221140
7643061156316
oct141600677664
936770550236
1013120012212
1156229a53aa
122661a477b0
131311201348
148c66897b6
1551bc5b05c
hex30e037fb4

13120012212 has 48 divisors (see below), whose sum is σ = 31287658752. Its totient is φ = 4277146240.

The previous prime is 13120012201. The next prime is 13120012223. The reversal of 13120012212 is 21221002131.

It is an interprime number because it is at equal distance from previous prime (13120012201) and next prime (13120012223).

It is a junction number, because it is equal to n+sod(n) for n = 13120012191 and 13120012200.

It is a congruent number.

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, 834262 + ... + 849842.

It is an arithmetic number, because the mean of its divisors is an integer number (651826224).

Almost surely, 213120012212 is an apocalyptic number.

13120012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13120012212 is an abundant number, since it is smaller than the sum of its proper divisors (18167646540).

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

13120012212 is a wasteful number, since it uses less digits than its factorization.

13120012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17128 (or 17126 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13120012212 its reverse (21221002131), we get a palindrome (34341014343).

The spelling of 13120012212 in words is "thirteen billion, one hundred twenty million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 1493 2986 4479 5972 8958 15581 17916 31162 46743 62324 70171 93486 140342 186972 210513 280684 421026 732307 842052 1464614 2196921 2929228 4393842 8787684 23262433 46524866 69787299 93049732 139574598 279149196 1093334351 2186668702 3280003053 4373337404 6560006106 13120012212