122122489 has 4 divisors (see below), whose sum is σ = 122173056. Its totient is φ = 122071924.

The previous prime is 122122471. The next prime is 122122493. The reversal of 122122489 is 984221221.

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 122122489 - 2⁵ = 122122457 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122122489.

It is not an unprimeable number, because it can be changed into a prime (122122409) 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, 21469 + ... + 26554.

It is an arithmetic number, because the mean of its divisors is an integer number (30543264).

Almost surely, 2^122122489 is an apocalyptic number.

It is an amenable number.

122122489 is a deficient number, since it is larger than the sum of its proper divisors (50567).

122122489 is an equidigital number, since it uses as much as digits as its factorization.

122122489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50566.

The product of its digits is 4608, while the sum is 31.

The square root of 122122489 is about 11050.9044426237. The cubic root of 122122489 is about 496.1334960324.

The spelling of 122122489 in words is "one hundred twenty-two million, one hundred twenty-two thousand, four hundred eighty-nine".