212551123464312 has 64 divisors (see below), whose sum is σ = 552004979016960. Its totient is φ = 68148762796800.

The previous prime is 212551123464287. The next prime is 212551123464367. The reversal of 212551123464312 is 213464321155212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1521107878 + ... + 1521247605.

It is an arithmetic number, because the mean of its divisors is an integer number (8625077797140).

Almost surely, 2^{212551123464312} is an apocalyptic number.

It is an amenable number.

212551123464312 is an abundant number, since it is smaller than the sum of its proper divisors (339453855552648).

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

212551123464312 is a wasteful number, since it uses less digits than its factorization.

212551123464312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042355604 (or 3042355600 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The spelling of 212551123464312 in words is "two hundred twelve trillion, five hundred fifty-one billion, one hundred twenty-three million, four hundred sixty-four thousand, three hundred twelve".