202112020201220 has 24 divisors (see below), whose sum is σ = 424455148361664. Its totient is φ = 80841016473056.

The previous prime is 202112020201219. The next prime is 202112020201241. The reversal of 202112020201220 is 22102020211202.

It is a happy number.

It is a super-2 number, since 2×202112020201220² (a number of 29 digits) contains 22 as substring.

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, 236538344 + ... + 237391263.

It is an arithmetic number, because the mean of its divisors is an integer number (17685631181736).

Almost surely, 2^{202112020201220} is an apocalyptic number.

202112020201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112020201220 is an abundant number, since it is smaller than the sum of its proper divisors (222343128160444).

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

202112020201220 is a wasteful number, since it uses less digits than its factorization.

202112020201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473950939 (or 473950937 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202112020201220 its reverse (22102020211202), we get a palindrome (224214040412422).

The spelling of 202112020201220 in words is "two hundred two trillion, one hundred twelve billion, twenty million, two hundred one thousand, two hundred twenty".