202100001022220 has 72 divisors (see below), whose sum is σ = 493711615185264. Its totient is φ = 69289999572864.

The previous prime is 202100001022211. The next prime is 202100001022291. The reversal of 202100001022220 is 22220100001202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 202100001022195 and 202100001022204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45959654 + ... + 50164626.

It is an arithmetic number, because the mean of its divisors is an integer number (6857105766462).

Almost surely, 2^{202100001022220} is an apocalyptic number.

202100001022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202100001022220 is an abundant number, since it is smaller than the sum of its proper divisors (291611614163044).

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

202100001022220 is a wasteful number, since it uses less digits than its factorization.

202100001022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254039 (or 4254030 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202100001022220 its reverse (22220100001202), we get a palindrome (224320101023422).

The spelling of 202100001022220 in words is "two hundred two trillion, one hundred billion, one million, twenty-two thousand, two hundred twenty".