212120210112112 has 40 divisors (see below), whose sum is σ = 433037302606160. Its totient is φ = 100379582760960.

The previous prime is 212120210112007. The next prime is 212120210112133. The reversal of 212120210112112 is 211211012021212.

It is a happy number.

212120210112112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 212120210112112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341395713 + ... + 342016480.

It is an arithmetic number, because the mean of its divisors is an integer number (10825932565154).

Almost surely, 2^{212120210112112} is an apocalyptic number.

It is an amenable number.

212120210112112 is an abundant number, since it is smaller than the sum of its proper divisors (220917092494048).

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

212120210112112 is a wasteful number, since it uses less digits than its factorization.

212120210112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683413241 (or 683413235 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212120210112112 its reverse (211211012021212), we get a palindrome (423331222133324).

The spelling of 212120210112112 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred ten million, one hundred twelve thousand, one hundred twelve".