202121112021122 has 32 divisors (see below), whose sum is σ = 349926238819584. Its totient is φ = 85765118904000.

The previous prime is 202121112021091. The next prime is 202121112021137. The reversal of 202121112021122 is 221120211121202.

It is a junction number, because it is equal to n+sod(n) for n = 202121112021094 and 202121112021103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274319972 + ... + 275055792.

It is an arithmetic number, because the mean of its divisors is an integer number (10935194963112).

Almost surely, 2^{202121112021122} is an apocalyptic number.

202121112021122 is a deficient number, since it is larger than the sum of its proper divisors (147805126798462).

202121112021122 is a wasteful number, since it uses less digits than its factorization.

202121112021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930194.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202121112021122 its reverse (221120211121202), we get a palindrome (423241323142324).

The spelling of 202121112021122 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred twelve million, twenty-one thousand, one hundred twenty-two".