212112212021022 has 32 divisors (see below), whose sum is σ = 430074223165440. Its totient is φ = 69729277602240.

The previous prime is 212112212020991. The next prime is 212112212021069. The reversal of 212112212021022 is 220120212211212.

It is a self number, because there is not a number n which added to its sum of digits gives 212112212021022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16782622 + ... + 26568417.

It is an arithmetic number, because the mean of its divisors is an integer number (13439819473920).

Almost surely, 2^{212112212021022} is an apocalyptic number.

212112212021022 is an abundant number, since it is smaller than the sum of its proper divisors (217962011144418).

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

212112212021022 is a wasteful number, since it uses less digits than its factorization.

212112212021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43362288.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212112212021022 its reverse (220120212211212), we get a palindrome (432232424232234).

The spelling of 212112212021022 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred twelve million, twenty-one thousand, twenty-two".