22111000021129 has 2 divisors, whose sum is σ = 22111000021130. Its totient is φ = 22111000021128.

The previous prime is 22111000021109. The next prime is 22111000021141. The reversal of 22111000021129 is 92112000011122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21089889771129 + 1021110250000 = 4592373^2 + 1010500^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111000021129 - 2²⁵ = 22110966466697 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111000021109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055500010564 + 11055500010565.

It is an arithmetic number, because the mean of its divisors is an integer number (11055500010565).

Almost surely, 2^{22111000021129} is an apocalyptic number.

It is an amenable number.

22111000021129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111000021129 is an equidigital number, since it uses as much as digits as its factorization.

22111000021129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 22111000021129 in words is "twenty-two trillion, one hundred eleven billion, twenty-one thousand, one hundred twenty-nine".