22202020221021 has 16 divisors (see below), whose sum is σ = 32904123033600. Its totient is φ = 14795838262944.

The previous prime is 22202020221011. The next prime is 22202020221061. The reversal of 22202020221021 is 12012202020222.

22202020221021 is a `hidden beast` number, since 2 + 220 + 202 + 0 + 221 + 0 + 21 = 666.

It is not a de Polignac number, because 22202020221021 - 2⁶ = 22202020220957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22202020220985 and 22202020221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202020221001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152941416 + ... + 153086513.

It is an arithmetic number, because the mean of its divisors is an integer number (2056507689600).

Almost surely, 2^{22202020221021} is an apocalyptic number.

It is an amenable number.

22202020221021 is a deficient number, since it is larger than the sum of its proper divisors (10702102812579).

22202020221021 is a wasteful number, since it uses less digits than its factorization.

22202020221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306030625 (or 306030619 counting only the distinct ones).

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

Adding to 22202020221021 its reverse (12012202020222), we get a palindrome (34214222241243).

The spelling of 22202020221021 in words is "twenty-two trillion, two hundred two billion, twenty million, two hundred twenty-one thousand, twenty-one".