212318112 has 24 divisors (see below), whose sum is σ = 557335296. Its totient is φ = 70772672.

The previous prime is 212318069. The next prime is 212318137. The reversal of 212318112 is 211813212.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105728 + ... + 1105919.

It is an arithmetic number, because the mean of its divisors is an integer number (23222304).

Almost surely, 2^212318112 is an apocalyptic number.

It is an amenable number.

212318112 is an abundant number, since it is smaller than the sum of its proper divisors (345017184).

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

212318112 is a wasteful number, since it uses less digits than its factorization.

212318112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211660 (or 2211652 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

The square root of 212318112 is about 14571.1396946155. The cubic root of 212318112 is about 596.5712883273.

The spelling of 212318112 in words is "two hundred twelve million, three hundred eighteen thousand, one hundred twelve".