202220022020 has 48 divisors (see below), whose sum is σ = 433765463040. Its totient is φ = 79154565504.

The previous prime is 202220022001. The next prime is 202220022023. The reversal of 202220022020 is 20220022202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202220021986 and 202220022004.

It is not an unprimeable number, because it can be changed into a prime (202220022023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8002766 + ... + 8027994.

It is an arithmetic number, because the mean of its divisors is an integer number (9036780480).

Almost surely, 2^202220022020 is an apocalyptic number.

202220022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202220022020 is an abundant number, since it is smaller than the sum of its proper divisors (231545441020).

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

202220022020 is a wasteful number, since it uses less digits than its factorization.

202220022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33812 (or 33810 counting only the distinct ones).

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

Adding to 202220022020 its reverse (20220022202), we get a palindrome (222440044222).

The spelling of 202220022020 in words is "two hundred two billion, two hundred twenty million, twenty-two thousand, twenty".