220122001129 has 2 divisors, whose sum is σ = 220122001130. Its totient is φ = 220122001128.

The previous prime is 220122001097. The next prime is 220122001189. The reversal of 220122001129 is 921100221022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208186875625 + 11935125504 = 456275^2 + 109248^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122001129 - 2⁵ = 220122001097 is a prime.

It is not a weakly prime, because it can be changed into another prime (220122001189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061000564 + 110061000565.

It is an arithmetic number, because the mean of its divisors is an integer number (110061000565).

Almost surely, 2^220122001129 is an apocalyptic number.

It is an amenable number.

220122001129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122001129 is an equidigital number, since it uses as much as digits as its factorization.

220122001129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 220122001129 in words is "two hundred twenty billion, one hundred twenty-two million, one thousand, one hundred twenty-nine".