122331231 has 12 divisors (see below), whose sum is σ = 192764520. Its totient is φ = 74140080.

The previous prime is 122331221. The next prime is 122331299. The reversal of 122331231 is 132133221.

It is not a de Polignac number, because 122331231 - 2¹¹ = 122329183 is a prime.

It is a super-2 number, since 2×122331231² = 29929860155950722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122331221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617736 + ... + 617933.

It is an arithmetic number, because the mean of its divisors is an integer number (16063710).

Almost surely, 2^122331231 is an apocalyptic number.

122331231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122331231 is a deficient number, since it is larger than the sum of its proper divisors (70433289).

122331231 is a wasteful number, since it uses less digits than its factorization.

122331231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235686 (or 1235683 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 122331231 is about 11060.3449765367. The cubic root of 122331231 is about 496.4160127862.

Adding to 122331231 its reverse (132133221), we get a palindrome (254464452).

The spelling of 122331231 in words is "one hundred twenty-two million, three hundred thirty-one thousand, two hundred thirty-one".