20202221312020 has 48 divisors (see below), whose sum is σ = 46302087319488. Its totient is φ = 7342986920960.

The previous prime is 20202221311903. The next prime is 20202221312041. The reversal of 20202221312020 is 2021312220202.

It is a congruent number.

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, 19976509 + ... + 20963428.

It is an arithmetic number, because the mean of its divisors is an integer number (964626819156).

Almost surely, 2^{20202221312020} is an apocalyptic number.

20202221312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202221312020 is an abundant number, since it is smaller than the sum of its proper divisors (26099866007468).

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

20202221312020 is a wasteful number, since it uses less digits than its factorization.

20202221312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40942200 (or 40942198 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20202221312020 its reverse (2021312220202), we get a palindrome (22223533532222).

The spelling of 20202221312020 in words is "twenty trillion, two hundred two billion, two hundred twenty-one million, three hundred twelve thousand, twenty".