225856612012 has 24 divisors (see below), whose sum is σ = 397943002800. Its totient is φ = 112158768960.

The previous prime is 225856611961. The next prime is 225856612043. The reversal of 225856612012 is 210216658522.

It is a super-2 number, since 2×225856612012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10127418 + ... + 10149694.

It is an arithmetic number, because the mean of its divisors is an integer number (16580958450).

Almost surely, 2^225856612012 is an apocalyptic number.

It is an amenable number.

225856612012 is a deficient number, since it is larger than the sum of its proper divisors (172086390788).

225856612012 is a wasteful number, since it uses less digits than its factorization.

225856612012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39441 (or 39439 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 225856612012 in words is "two hundred twenty-five billion, eight hundred fifty-six million, six hundred twelve thousand, twelve".