202020022220 has 24 divisors (see below), whose sum is σ = 424650408000. Its totient is φ = 80730225792.

The previous prime is 202020022213. The next prime is 202020022261. The reversal of 202020022220 is 22220020202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202020022195 and 202020022204.

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, 4840145 + ... + 4881704.

It is an arithmetic number, because the mean of its divisors is an integer number (17693767000).

Almost surely, 2^202020022220 is an apocalyptic number.

202020022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020022220 is an abundant number, since it is smaller than the sum of its proper divisors (222630385780).

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

202020022220 is a wasteful number, since it uses less digits than its factorization.

202020022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9722897 (or 9722895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 202020022220 its reverse (22220020202), we get a palindrome (224240042422).

The spelling of 202020022220 in words is "two hundred two billion, twenty million, twenty-two thousand, two hundred twenty".