22102870121 has 2 divisors, whose sum is σ = 22102870122. Its totient is φ = 22102870120.

The previous prime is 22102870067. The next prime is 22102870133. The reversal of 22102870121 is 12107820122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22003568896 + 99301225 = 148336^2 + 9965^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102870121 - 2¹⁰ = 22102869097 is a prime.

It is not a weakly prime, because it can be changed into another prime (22102870721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051435060 + 11051435061.

It is an arithmetic number, because the mean of its divisors is an integer number (11051435061).

Almost surely, 2^22102870121 is an apocalyptic number.

It is an amenable number.

22102870121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102870121 is an equidigital number, since it uses as much as digits as its factorization.

22102870121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 22102870121 in words is "twenty-two billion, one hundred two million, eight hundred seventy thousand, one hundred twenty-one".