212775307120 has 20 divisors (see below), whose sum is σ = 494702589240. Its totient is φ = 85110122816.

The previous prime is 212775307103. The next prime is 212775307133. The reversal of 212775307120 is 21703577212.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 212775307120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329845590 + ... + 1329845749.

It is an arithmetic number, because the mean of its divisors is an integer number (24735129462).

Almost surely, 2^212775307120 is an apocalyptic number.

212775307120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212775307120 is an abundant number, since it is smaller than the sum of its proper divisors (281927282120).

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

212775307120 is a wasteful number, since it uses less digits than its factorization.

212775307120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659691352 (or 2659691346 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 212775307120 in words is "two hundred twelve billion, seven hundred seventy-five million, three hundred seven thousand, one hundred twenty".