212112202020012 has 108 divisors (see below), whose sum is σ = 650828744210736. Its totient is φ = 57968552093760.

The previous prime is 212112202020007. The next prime is 212112202020101. The reversal of 212112202020012 is 210020202211212.

It is a happy number.

212112202020012 is a `hidden beast` number, since 2 + 1 + 211 + 220 + 20 + 200 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2613981439 + ... + 2614062582.

Almost surely, 2^{212112202020012} is an apocalyptic number.

It is an amenable number.

212112202020012 is an abundant number, since it is smaller than the sum of its proper divisors (438716542190724).

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

212112202020012 is a wasteful number, since it uses less digits than its factorization.

212112202020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228044068 (or 5228044056 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212112202020012 its reverse (210020202211212), we get a palindrome (422132404231224).

The spelling of 212112202020012 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred two million, twenty thousand, twelve".