122540002069 has 2 divisors, whose sum is σ = 122540002070. Its totient is φ = 122540002068.

The previous prime is 122540002001. The next prime is 122540002129. The reversal of 122540002069 is 960200045221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91120667044 + 31419335025 = 301862^2 + 177255^2 .

It is a cyclic number.

It is not a de Polignac number, because 122540002069 - 2³³ = 113950067477 is a prime.

It is a super-2 number, since 2×122540002069² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122540002069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122540402069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61270001034 + 61270001035.

It is an arithmetic number, because the mean of its divisors is an integer number (61270001035).

Almost surely, 2^122540002069 is an apocalyptic number.

It is an amenable number.

122540002069 is a deficient number, since it is larger than the sum of its proper divisors (1).

122540002069 is an equidigital number, since it uses as much as digits as its factorization.

122540002069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 122540002069 in words is "one hundred twenty-two billion, five hundred forty million, two thousand, sixty-nine".