122257774329 has 4 divisors (see below), whose sum is σ = 163010365776. Its totient is φ = 81505182884.

The previous prime is 122257774321. The next prime is 122257774369. The reversal of 122257774329 is 923477752221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122257774329 - 2³ = 122257774321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122257774321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20376295719 + ... + 20376295724.

It is an arithmetic number, because the mean of its divisors is an integer number (40752591444).

Almost surely, 2^122257774329 is an apocalyptic number.

It is an amenable number.

122257774329 is a deficient number, since it is larger than the sum of its proper divisors (40752591447).

122257774329 is an equidigital number, since it uses as much as digits as its factorization.

122257774329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40752591446.

The product of its digits is 2963520, while the sum is 51.

The spelling of 122257774329 in words is "one hundred twenty-two billion, two hundred fifty-seven million, seven hundred seventy-four thousand, three hundred twenty-nine".