12105872475012 has 18 divisors (see below), whose sum is σ = 30600955423038. Its totient is φ = 4035290824992.

The previous prime is 12105872475007. The next prime is 12105872475023. The reversal of 12105872475012 is 21057427850121.

12105872475012 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 587 + 2 + 4 + 7 + 50 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9434824851456 + 2671047623556 = 3071616^2 + 1634334^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168137117673 + ... + 168137117744.

Almost surely, 2^{12105872475012} is an apocalyptic number.

12105872475012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12105872475012 is an abundant number, since it is smaller than the sum of its proper divisors (18495082948026).

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

12105872475012 is a wasteful number, since it uses less digits than its factorization.

12105872475012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336274235427 (or 336274235422 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 12105872475012 in words is "twelve trillion, one hundred five billion, eight hundred seventy-two million, four hundred seventy-five thousand, twelve".