122540002129 has 2 divisors, whose sum is σ = 122540002130. Its totient is φ = 122540002128.

The previous prime is 122540002069. The next prime is 122540002139. The reversal of 122540002129 is 921200045221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102332811025 + 20207191104 = 319895^2 + 142152^2 .

It is a cyclic number.

It is not a de Polignac number, because 122540002129 - 2⁷ = 122540002001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122540002097 and 122540002106.

It is not a weakly prime, because it can be changed into another prime (122540002139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61270001064 + 61270001065.

It is an arithmetic number, because the mean of its divisors is an integer number (61270001065).

Almost surely, 2^122540002129 is an apocalyptic number.

It is an amenable number.

122540002129 is a deficient number, since it is larger than the sum of its proper divisors (1).

122540002129 is an equidigital number, since it uses as much as digits as its factorization.

122540002129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 122540002129 in words is "one hundred twenty-two billion, five hundred forty million, two thousand, one hundred twenty-nine".