22100000129 has 2 divisors, whose sum is σ = 22100000130. Its totient is φ = 22100000128.

The previous prime is 22100000093. The next prime is 22100000171. The reversal of 22100000129 is 92100000122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13446721600 + 8653278529 = 115960^2 + 93023^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100000129 - 2²⁸ = 21831564673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22100000029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050000064 + 11050000065.

It is an arithmetic number, because the mean of its divisors is an integer number (11050000065).

Almost surely, 2^22100000129 is an apocalyptic number.

It is an amenable number.

22100000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100000129 is an equidigital number, since it uses as much as digits as its factorization.

22100000129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 22100000129 in words is "twenty-two billion, one hundred million, one hundred twenty-nine", and thus it is an aban number.