212915322 has 12 divisors (see below), whose sum is σ = 461316570. Its totient is φ = 70971768.

The previous prime is 212915321. The next prime is 212915357. The reversal of 212915322 is 223519212.

It is a happy number.

212915322 is a `hidden beast` number, since 2 + 129 + 1 + 532 + 2 = 666.

212915322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137381841 + 75533481 = 11721^2 + 8691^2 .

It is not an unprimeable number, because it can be changed into a prime (212915321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5914297 + ... + 5914332.

Almost surely, 2^212915322 is an apocalyptic number.

212915322 is an abundant number, since it is smaller than the sum of its proper divisors (248401248).

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

212915322 is a wasteful number, since it uses less digits than its factorization.

212915322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828637 (or 11828634 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 212915322 is about 14591.6182104659. The cubic root of 212915322 is about 597.1301114525.

The spelling of 212915322 in words is "two hundred twelve million, nine hundred fifteen thousand, three hundred twenty-two".