212238315 has 12 divisors (see below), whose sum is σ = 367879824. Its totient is φ = 113193744.

The previous prime is 212238311. The next prime is 212238329. The reversal of 212238315 is 513832212.

It is not a de Polignac number, because 212238315 - 2² = 212238311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212238311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2358159 + ... + 2358248.

It is an arithmetic number, because the mean of its divisors is an integer number (30656652).

Almost surely, 2^212238315 is an apocalyptic number.

212238315 is a deficient number, since it is larger than the sum of its proper divisors (155641509).

212238315 is a wasteful number, since it uses less digits than its factorization.

212238315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716418 (or 4716415 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 212238315 is about 14568.4012506520. The cubic root of 212238315 is about 596.4965411099.

The spelling of 212238315 in words is "two hundred twelve million, two hundred thirty-eight thousand, three hundred fifteen".