22122234011021 has 2 divisors, whose sum is σ = 22122234011022. Its totient is φ = 22122234011020.

The previous prime is 22122234010999. The next prime is 22122234011041. The reversal of 22122234011021 is 12011043222122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17612408397796 + 4509825613225 = 4196714^2 + 2123635^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122234011021 - 2²² = 22122229816717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22122234011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061117005510 + 11061117005511.

It is an arithmetic number, because the mean of its divisors is an integer number (11061117005511).

Almost surely, 2^{22122234011021} is an apocalyptic number.

It is an amenable number.

22122234011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122234011021 is an equidigital number, since it uses as much as digits as its factorization.

22122234011021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 22122234011021 its reverse (12011043222122), we get a palindrome (34133277233143).

The spelling of 22122234011021 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred thirty-four million, eleven thousand, twenty-one".