201212122220202 has 16 divisors (see below), whose sum is σ = 406572947992512. Its totient is φ = 66379256814720.

The previous prime is 201212122220141. The next prime is 201212122220231. The reversal of 201212122220202 is 202022221212102.

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, 172862647374 + ... + 172862648537.

It is an arithmetic number, because the mean of its divisors is an integer number (25410809249532).

Almost surely, 2^{201212122220202} is an apocalyptic number.

201212122220202 is an abundant number, since it is smaller than the sum of its proper divisors (205360825772310).

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

201212122220202 is a wasteful number, since it uses less digits than its factorization.

201212122220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345725296013.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 201212122220202 its reverse (202022221212102), we get a palindrome (403234343432304).

The spelling of 201212122220202 in words is "two hundred one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty thousand, two hundred two".