22020202022221 has 32 divisors (see below), whose sum is σ = 25581257146368. Its totient is φ = 18804402832320.

The previous prime is 22020202022177. The next prime is 22020202022239. The reversal of 22020202022221 is 12222020202022.

It is a cyclic number.

It is not a de Polignac number, because 22020202022221 - 2³⁹ = 21470446208333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020202022821) 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, 12703771 + ... + 14332696.

It is an arithmetic number, because the mean of its divisors is an integer number (799414285824).

Almost surely, 2^{22020202022221} is an apocalyptic number.

It is an amenable number.

22020202022221 is a deficient number, since it is larger than the sum of its proper divisors (3561055124147).

22020202022221 is a wasteful number, since it uses less digits than its factorization.

22020202022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27036601.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22020202022221 its reverse (12222020202022), we get a palindrome (34242222224243).

The spelling of 22020202022221 in words is "twenty-two trillion, twenty billion, two hundred two million, twenty-two thousand, two hundred twenty-one".