202122102021220 has 24 divisors (see below), whose sum is σ = 424456865388864. Its totient is φ = 80848754876256.

The previous prime is 202122102021149. The next prime is 202122102021233. The reversal of 202122102021220 is 22120201221202.

202122102021220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15988329 + ... + 25687951.

It is an arithmetic number, because the mean of its divisors is an integer number (17685702724536).

Almost surely, 2^{202122102021220} is an apocalyptic number.

202122102021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122102021220 is an abundant number, since it is smaller than the sum of its proper divisors (222334763367644).

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

202122102021220 is a wasteful number, since it uses less digits than its factorization.

202122102021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741539 (or 10741537 counting only the distinct ones).

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

Adding to 202122102021220 its reverse (22120201221202), we get a palindrome (224242303242422).

The spelling of 202122102021220 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred two million, twenty-one thousand, two hundred twenty".