212112021112112 has 80 divisors (see below), whose sum is σ = 476596389093120. Its totient is φ = 90435747168000.

The previous prime is 212112021112039. The next prime is 212112021112129. The reversal of 212112021112112 is 211211120211212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313675268 + ... + 314350755.

It is an arithmetic number, because the mean of its divisors is an integer number (5957454863664).

Almost surely, 2^{212112021112112} is an apocalyptic number.

212112021112112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212112021112112 is an abundant number, since it is smaller than the sum of its proper divisors (264484367981008).

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

212112021112112 is a wasteful number, since it uses less digits than its factorization.

212112021112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628026162 (or 628026156 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212112021112112 its reverse (211211120211212), we get a palindrome (423323141323324).

It can be divided in two parts, 2121120 and 21112112, that added together give a palindrome (23233232).

The spelling of 212112021112112 in words is "two hundred twelve trillion, one hundred twelve billion, twenty-one million, one hundred twelve thousand, one hundred twelve".