202221022220 has 48 divisors (see below), whose sum is σ = 485992815168. Its totient is φ = 69238298880.

The previous prime is 202221022217. The next prime is 202221022231. The reversal of 202221022220 is 22220122202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882671 + ... + 1087910.

It is an arithmetic number, because the mean of its divisors is an integer number (10124850316).

Almost surely, 2^202221022220 is an apocalyptic number.

202221022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221022220 is an abundant number, since it is smaller than the sum of its proper divisors (283771792948).

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

202221022220 is a wasteful number, since it uses less digits than its factorization.

202221022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971330 (or 1971328 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 202221022220 its reverse (22220122202), we get a palindrome (224441144422).

The spelling of 202221022220 in words is "two hundred two billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty".