12125756512 has 48 divisors (see below), whose sum is σ = 24007158000. Its totient is φ = 6028807680.

The previous prime is 12125756501. The next prime is 12125756551. The reversal of 12125756512 is 21565752121.

It is a super-2 number, since 2×12125756512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 4700439 + ... + 4703017.

It is an arithmetic number, because the mean of its divisors is an integer number (500149125).

Almost surely, 2^12125756512 is an apocalyptic number.

It is an amenable number.

12125756512 is a deficient number, since it is larger than the sum of its proper divisors (11881401488).

12125756512 is a wasteful number, since it uses less digits than its factorization.

12125756512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359 (or 3351 counting only the distinct ones).

The product of its digits is 42000, while the sum is 37.

The spelling of 12125756512 in words is "twelve billion, one hundred twenty-five million, seven hundred fifty-six thousand, five hundred twelve".