12122955912 has 32 divisors (see below), whose sum is σ = 30367673280. Its totient is φ = 4032947520.

The previous prime is 12122955853. The next prime is 12122955941. The reversal of 12122955912 is 21955922121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490039 + ... + 514182.

It is an arithmetic number, because the mean of its divisors is an integer number (948989790).

Almost surely, 2^12122955912 is an apocalyptic number.

12122955912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122955912 is an abundant number, since it is smaller than the sum of its proper divisors (18244717368).

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

12122955912 is a wasteful number, since it uses less digits than its factorization.

12122955912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004733 (or 1004729 counting only the distinct ones).

The product of its digits is 32400, while the sum is 39.

The spelling of 12122955912 in words is "twelve billion, one hundred twenty-two million, nine hundred fifty-five thousand, nine hundred twelve".