212211202112112 has 40 divisors (see below), whose sum is σ = 626528310998656. Its totient is φ = 60631772031936.

The previous prime is 212211202112051. The next prime is 212211202112183. The reversal of 212211202112112 is 211211202112212.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 315790478998 + ... + 315790479669.

Almost surely, 2^{212211202112112} is an apocalyptic number.

It is an amenable number.

212211202112112 is an abundant number, since it is smaller than the sum of its proper divisors (414317108886544).

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

212211202112112 is a wasteful number, since it uses less digits than its factorization.

212211202112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631580958685 (or 631580958679 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 212211202112112 its reverse (211211202112212), we get a palindrome (423422404224324).

The spelling of 212211202112112 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred two million, one hundred twelve thousand, one hundred twelve".