202122222211021 has 24 divisors (see below), whose sum is σ = 245848242337920. Its totient is φ = 165374835972192.

The previous prime is 202122222210973. The next prime is 202122222211073. The reversal of 202122222211021 is 120112222221202.

It is not a de Polignac number, because 202122222211021 - 2²³ = 202122213822413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202122222210983 and 202122222211001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122222211121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183583966 + ... + 184681663.

It is an arithmetic number, because the mean of its divisors is an integer number (10243676764080).

Almost surely, 2^{202122222211021} is an apocalyptic number.

It is an amenable number.

202122222211021 is a deficient number, since it is larger than the sum of its proper divisors (43726020126899).

202122222211021 is a wasteful number, since it uses less digits than its factorization.

202122222211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368266153 (or 368266146 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202122222211021 its reverse (120112222221202), we get a palindrome (322234444432223).

The spelling of 202122222211021 in words is "two hundred two trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, twenty-one".