212256120 has 32 divisors (see below), whose sum is σ = 636768720. Its totient is φ = 56601600.

The previous prime is 212256119. The next prime is 212256151. The reversal of 212256120 is 21652212.

It is a happy number.

212256120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 884281 + ... + 884520.

Almost surely, 2^212256120 is an apocalyptic number.

212256120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212256120 is an abundant number, since it is smaller than the sum of its proper divisors (424512600).

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

212256120 is a wasteful number, since it uses less digits than its factorization.

212256120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768815 (or 1768811 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 212256120 is about 14569.0123206757. The cubic root of 212256120 is about 596.5132209821.

The spelling of 212256120 in words is "two hundred twelve million, two hundred fifty-six thousand, one hundred twenty".