122238423458 has 6 divisors (see below), whose sum is σ = 183358376859. Its totient is φ = 61118964506.

The previous prime is 122238423457. The next prime is 122238423467. The reversal of 122238423458 is 854324832221.

It can be written as a sum of positive squares in only one way, i.e., 61119211729 + 61119211729 = 247223^2 + 247223^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247223.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122238423457) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 370835 + ... + 618057.

Almost surely, 2^122238423458 is an apocalyptic number.

122238423458 is a deficient number, since it is larger than the sum of its proper divisors (61119953401).

122238423458 is an frugal number, since it uses more digits than its factorization.

122238423458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494448 (or 247225 counting only the distinct ones).

The product of its digits is 737280, while the sum is 44.

The spelling of 122238423458 in words is "one hundred twenty-two billion, two hundred thirty-eight million, four hundred twenty-three thousand, four hundred fifty-eight".