22122303021 has 24 divisors (see below), whose sum is σ = 39328540160. Its totient is φ = 11668906656.

The previous prime is 22122303019. The next prime is 22122303061. The reversal of 22122303021 is 12030322122.

It is not a de Polignac number, because 22122303021 - 2¹ = 22122303019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122302985 and 22122303003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122303011) 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, 13504861 + ... + 13506498.

Almost surely, 2^22122303021 is an apocalyptic number.

22122303021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22122303021 is a deficient number, since it is larger than the sum of its proper divisors (17206237139).

22122303021 is a wasteful number, since it uses less digits than its factorization.

22122303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27011385 (or 27011382 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22122303021 its reverse (12030322122), we get a palindrome (34152625143).

The spelling of 22122303021 in words is "twenty-two billion, one hundred twenty-two million, three hundred three thousand, twenty-one".