22312021129 has 2 divisors, whose sum is σ = 22312021130. Its totient is φ = 22312021128.

The previous prime is 22312021097. The next prime is 22312021153. The reversal of 22312021129 is 92112021322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21418907904 + 893113225 = 146352^2 + 29885^2 .

It is a cyclic number.

It is not a de Polignac number, because 22312021129 - 2⁵ = 22312021097 is a prime.

It is a super-3 number, since 3×22312021129³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22312021169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11156010564 + 11156010565.

It is an arithmetic number, because the mean of its divisors is an integer number (11156010565).

Almost surely, 2^22312021129 is an apocalyptic number.

It is an amenable number.

22312021129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22312021129 is an equidigital number, since it uses as much as digits as its factorization.

22312021129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 22312021129 in words is "twenty-two billion, three hundred twelve million, twenty-one thousand, one hundred twenty-nine".