212668512 has 48 divisors (see below), whose sum is σ = 638007552. Its totient is φ = 60762240.

The previous prime is 212668459. The next prime is 212668537. The reversal of 212668512 is 215866212.

It is a tau number, because it is divible by the number of its divisors (48).

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, 157564 + ... + 158907.

It is an arithmetic number, because the mean of its divisors is an integer number (13291824).

Almost surely, 2^212668512 is an apocalyptic number.

It is an amenable number.

212668512 is an abundant number, since it is smaller than the sum of its proper divisors (425339040).

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

212668512 is a wasteful number, since it uses less digits than its factorization.

212668512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316491 (or 316483 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 212668512 is about 14583.1585056187. The cubic root of 212668512 is about 596.8992925138.

The spelling of 212668512 in words is "two hundred twelve million, six hundred sixty-eight thousand, five hundred twelve".