22112111129 has 2 divisors, whose sum is σ = 22112111130. Its totient is φ = 22112111128.

The previous prime is 22112111107. The next prime is 22112111167. The reversal of 22112111129 is 92111121122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13776421129 + 8335690000 = 117373^2 + 91300^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112111129 - 2⁸ = 22112110873 is a prime.

It is not a weakly prime, because it can be changed into another prime (22112111029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056055564 + 11056055565.

It is an arithmetic number, because the mean of its divisors is an integer number (11056055565).

Almost surely, 2^22112111129 is an apocalyptic number.

It is an amenable number.

22112111129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112111129 is an equidigital number, since it uses as much as digits as its factorization.

22112111129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 23.

The spelling of 22112111129 in words is "twenty-two billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-nine".