202121022202212 has 24 divisors (see below), whose sum is σ = 474084910720512. Its totient is φ = 67020932317600.

The previous prime is 202121022202207. The next prime is 202121022202237. The reversal of 202121022202212 is 212202220121202.

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, 44092716339 + ... + 44092720922.

It is an arithmetic number, because the mean of its divisors is an integer number (19753537946688).

Almost surely, 2^{202121022202212} is an apocalyptic number.

It is an amenable number.

202121022202212 is an abundant number, since it is smaller than the sum of its proper divisors (271963888518300).

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

202121022202212 is a wasteful number, since it uses less digits than its factorization.

202121022202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88185437459 (or 88185437457 counting only the distinct ones).

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

Adding to 202121022202212 its reverse (212202220121202), we get a palindrome (414323242323414).

The spelling of 202121022202212 in words is "two hundred two trillion, one hundred twenty-one billion, twenty-two million, two hundred two thousand, two hundred twelve".