12120627992 has 16 divisors (see below), whose sum is σ = 24792193800. Its totient is φ = 5509376320.

The previous prime is 12120627977. The next prime is 12120627997. The reversal of 12120627992 is 29972602121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120627997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68867117 + ... + 68867292.

Almost surely, 2^12120627992 is an apocalyptic number.

It is an amenable number.

12120627992 is an abundant number, since it is smaller than the sum of its proper divisors (12671565808).

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

12120627992 is a wasteful number, since it uses less digits than its factorization.

12120627992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137734426 (or 137734422 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 12120627992 in words is "twelve billion, one hundred twenty million, six hundred twenty-seven thousand, nine hundred ninety-two".