22020202221021 has 32 divisors (see below), whose sum is σ = 32727504384000. Its totient is φ = 14632968458160.

The previous prime is 22020202221013. The next prime is 22020202221023. The reversal of 22020202221021 is 12012220202022.

22020202221021 is a `hidden beast` number, since 220 + 2 + 0 + 202 + 221 + 0 + 21 = 666.

It is not a de Polignac number, because 22020202221021 - 2³ = 22020202221013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020202220985 and 22020202221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020202221023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9411736 + ... + 11516126.

It is an arithmetic number, because the mean of its divisors is an integer number (1022734512000).

Almost surely, 2^{22020202221021} is an apocalyptic number.

It is an amenable number.

22020202221021 is a deficient number, since it is larger than the sum of its proper divisors (10707302162979).

22020202221021 is a wasteful number, since it uses less digits than its factorization.

22020202221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105646 (or 2105640 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22020202221021 its reverse (12012220202022), we get a palindrome (34032422423043).

The spelling of 22020202221021 in words is "twenty-two trillion, twenty billion, two hundred two million, two hundred twenty-one thousand, twenty-one".