22121122022020 has 48 divisors (see below), whose sum is σ = 53095243380480. Its totient is φ = 7583734617984.

The previous prime is 22121122021979. The next prime is 22121122022119. The reversal of 22121122022020 is 2022022112122.

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, 5131000 + ... + 8400559.

It is an arithmetic number, because the mean of its divisors is an integer number (1106150903760).

Almost surely, 2^{22121122022020} is an apocalyptic number.

22121122022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121122022020 is an abundant number, since it is smaller than the sum of its proper divisors (30974121358460).

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

22121122022020 is a wasteful number, since it uses less digits than its factorization.

22121122022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13543252 (or 13543250 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22121122022020 its reverse (2022022112122), we get a palindrome (24143144134142).

The spelling of 22121122022020 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, twenty-two thousand, twenty".