201212210100122 has 64 divisors (see below), whose sum is σ = 337091001408000. Its totient is φ = 89438839193088.

The previous prime is 201212210100113. The next prime is 201212210100169. The reversal of 201212210100122 is 221001012212102.

It is a self number, because there is not a number n which added to its sum of digits gives 201212210100122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2600980079 + ... + 2601057437.

It is an arithmetic number, because the mean of its divisors is an integer number (5267046897000).

Almost surely, 2^{201212210100122} is an apocalyptic number.

201212210100122 is a deficient number, since it is larger than the sum of its proper divisors (135878791307878).

201212210100122 is a wasteful number, since it uses less digits than its factorization.

201212210100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86055.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201212210100122 its reverse (221001012212102), we get a palindrome (422213222312224).

The spelling of 201212210100122 in words is "two hundred one trillion, two hundred twelve billion, two hundred ten million, one hundred thousand, one hundred twenty-two".