22202020120021 has 24 divisors (see below), whose sum is σ = 25841684625120. Its totient is φ = 19019367208800.

The previous prime is 22202020120019. The next prime is 22202020120031. The reversal of 22202020120021 is 12002102020222.

It is not a de Polignac number, because 22202020120021 - 2¹ = 22202020120019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22202020119977 and 22202020120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202020120031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1280310811 + ... + 1280328151.

It is an arithmetic number, because the mean of its divisors is an integer number (1076736859380).

Almost surely, 2^{22202020120021} is an apocalyptic number.

It is an amenable number.

22202020120021 is a deficient number, since it is larger than the sum of its proper divisors (3639664505099).

22202020120021 is a wasteful number, since it uses less digits than its factorization.

22202020120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30865 (or 30858 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22202020120021 its reverse (12002102020222), we get a palindrome (34204122140243).

It can be divided in two parts, 222020201 and 20021, that added together give a palindrome (222040222).

The spelling of 22202020120021 in words is "twenty-two trillion, two hundred two billion, twenty million, one hundred twenty thousand, twenty-one".