201212200022122 has 16 divisors (see below), whose sum is σ = 317704599475200. Its totient is φ = 95310704388960.

The previous prime is 201212200022089. The next prime is 201212200022159. The reversal of 201212200022122 is 221220002212102.

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 201212200022122.

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 7 ways as a sum of consecutive naturals, for example, 1652454 + ... + 20128462.

It is an arithmetic number, because the mean of its divisors is an integer number (19856537467200).

Almost surely, 2^{201212200022122} is an apocalyptic number.

201212200022122 is a deficient number, since it is larger than the sum of its proper divisors (116492399453078).

201212200022122 is a wasteful number, since it uses less digits than its factorization.

201212200022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18762621.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201212200022122 its reverse (221220002212102), we get a palindrome (422432202234224).

The spelling of 201212200022122 in words is "two hundred one trillion, two hundred twelve billion, two hundred million, twenty-two thousand, one hundred twenty-two".