201221120022202 has 16 divisors (see below), whose sum is σ = 344951525208960. Its totient is φ = 86237364431088.

The previous prime is 201221120022163. The next prime is 201221120022211. The reversal of 201221120022202 is 202220021122102.

It is a super-2 number, since 2×201221120022202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201221120022202.

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, 16659702 + ... + 26076577.

It is an arithmetic number, because the mean of its divisors is an integer number (21559470325560).

Almost surely, 2^{201221120022202} is an apocalyptic number.

201221120022202 is a deficient number, since it is larger than the sum of its proper divisors (143730405186758).

201221120022202 is a wasteful number, since it uses less digits than its factorization.

201221120022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43072605.

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

Adding to 201221120022202 its reverse (202220021122102), we get a palindrome (403441141144304).

The spelling of 201221120022202 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred twenty million, twenty-two thousand, two hundred two".