122231589 has 4 divisors (see below), whose sum is σ = 162975456. Its totient is φ = 81487724.

The previous prime is 122231563. The next prime is 122231611. The reversal of 122231589 is 985132221.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 985132221 = 3 ⋅328377407.

It is a cyclic number.

It is not a de Polignac number, because 122231589 - 2²⁴ = 105454373 is a prime.

It is a super-2 number, since 2×122231589² = 29881122698929842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20371929 + ... + 20371934.

It is an arithmetic number, because the mean of its divisors is an integer number (40743864).

Almost surely, 2^122231589 is an apocalyptic number.

It is an amenable number.

122231589 is a deficient number, since it is larger than the sum of its proper divisors (40743867).

122231589 is an equidigital number, since it uses as much as digits as its factorization.

122231589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40743866.

The product of its digits is 8640, while the sum is 33.

The square root of 122231589 is about 11055.8395881995. The cubic root of 122231589 is about 496.2811948827.

The spelling of 122231589 in words is "one hundred twenty-two million, two hundred thirty-one thousand, five hundred eighty-nine".