212112313312 has 24 divisors (see below), whose sum is σ = 418054567392. Its totient is φ = 105939724800.

The previous prime is 212112313267. The next prime is 212112313313. The reversal of 212112313312 is 213313211212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112313313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3608889 + ... + 3667192.

It is an arithmetic number, because the mean of its divisors is an integer number (17418940308).

Almost surely, 2^212112313312 is an apocalyptic number.

It is an amenable number.

212112313312 is a deficient number, since it is larger than the sum of its proper divisors (205942254080).

212112313312 is an equidigital number, since it uses as much as digits as its factorization.

212112313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277002 (or 7276994 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 212112313312 its reverse (213313211212), we get a palindrome (425425524524).

The spelling of 212112313312 in words is "two hundred twelve billion, one hundred twelve million, three hundred thirteen thousand, three hundred twelve".