202202222222021 has 32 divisors (see below), whose sum is σ = 239697788682240. Its totient is φ = 166891548632256.

The previous prime is 202202222221991. The next prime is 202202222222023. The reversal of 202202222222021 is 120222222202202.

It is not a de Polignac number, because 202202222222021 - 2⁶ = 202202222221957 is a prime.

It is a super-2 number, since 2×202202222222021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202202222222023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147067460 + ... + 148435986.

It is an arithmetic number, because the mean of its divisors is an integer number (7490555896320).

Almost surely, 2^{202202222222021} is an apocalyptic number.

It is an amenable number.

202202222222021 is a deficient number, since it is larger than the sum of its proper divisors (37495566460219).

202202222222021 is a wasteful number, since it uses less digits than its factorization.

202202222222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370513.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 202202222222021 its reverse (120222222202202), we get a palindrome (322424444424223).

The spelling of 202202222222021 in words is "two hundred two trillion, two hundred two billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty-one".