22122021169 has 2 divisors, whose sum is σ = 22122021170. Its totient is φ = 22122021168.

The previous prime is 22122021139. The next prime is 22122021223. The reversal of 22122021169 is 96112022122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17167550625 + 4954470544 = 131025^2 + 70388^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122021169 - 2⁷ = 22122021041 is a prime.

It is a super-2 number, since 2×22122021169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22122021139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061010584 + 11061010585.

It is an arithmetic number, because the mean of its divisors is an integer number (11061010585).

Almost surely, 2^22122021169 is an apocalyptic number.

It is an amenable number.

22122021169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122021169 is an equidigital number, since it uses as much as digits as its factorization.

22122021169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 22122021169 in words is "twenty-two billion, one hundred twenty-two million, twenty-one thousand, one hundred sixty-nine".