212291682612 has 24 divisors (see below), whose sum is σ = 524485334016. Its totient is φ = 66601312128.

The previous prime is 212291682601. The next prime is 212291682653. The reversal of 212291682612 is 216286192212.

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, 520322548 + ... + 520322955.

It is an arithmetic number, because the mean of its divisors is an integer number (21853555584).

Almost surely, 2^212291682612 is an apocalyptic number.

It is an amenable number.

212291682612 is an abundant number, since it is smaller than the sum of its proper divisors (312193651404).

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

212291682612 is a wasteful number, since it uses less digits than its factorization.

212291682612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040645527 (or 1040645525 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The spelling of 212291682612 in words is "two hundred twelve billion, two hundred ninety-one million, six hundred eighty-two thousand, six hundred twelve".