122279254359 has 4 divisors (see below), whose sum is σ = 163039005816. Its totient is φ = 81519502904.

The previous prime is 122279254343. The next prime is 122279254417. The reversal of 122279254359 is 953452972221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122279254359 - 2⁴ = 122279254343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122279254309) 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, 20379875724 + ... + 20379875729.

It is an arithmetic number, because the mean of its divisors is an integer number (40759751454).

Almost surely, 2^122279254359 is an apocalyptic number.

122279254359 is a deficient number, since it is larger than the sum of its proper divisors (40759751457).

122279254359 is an equidigital number, since it uses as much as digits as its factorization.

122279254359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40759751456.

The product of its digits is 2721600, while the sum is 51.

The spelling of 122279254359 in words is "one hundred twenty-two billion, two hundred seventy-nine million, two hundred fifty-four thousand, three hundred fifty-nine".