22222211129 has 2 divisors, whose sum is σ = 22222211130. Its totient is φ = 22222211128.

The previous prime is 22222211117. The next prime is 22222211161. The reversal of 22222211129 is 92111222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11271007225 + 10951203904 = 106165^2 + 104648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22222211129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22222211098 and 22222211107.

It is not a weakly prime, because it can be changed into another prime (22222211189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111105564 + 11111105565.

It is an arithmetic number, because the mean of its divisors is an integer number (11111105565).

Almost surely, 2^22222211129 is an apocalyptic number.

It is an amenable number.

22222211129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222211129 is an equidigital number, since it uses as much as digits as its factorization.

22222211129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The spelling of 22222211129 in words is "twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-nine".