222011111129 has 2 divisors, whose sum is σ = 222011111130. Its totient is φ = 222011111128.

The previous prime is 222011111111. The next prime is 222011111149. The reversal of 222011111129 is 921111110222.

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., 162387238729 + 59623872400 = 402973^2 + 244180^2 .

It is a cyclic number.

It is not a de Polignac number, because 222011111129 - 2²⁰ = 222010062553 is a prime.

It is not a weakly prime, because it can be changed into another prime (222011111149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005555564 + 111005555565.

It is an arithmetic number, because the mean of its divisors is an integer number (111005555565).

Almost surely, 2^222011111129 is an apocalyptic number.

It is an amenable number.

222011111129 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011111129 is an equidigital number, since it uses as much as digits as its factorization.

222011111129 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 222011111129 in words is "two hundred twenty-two billion, eleven million, one hundred eleven thousand, one hundred twenty-nine".