122312331 has 12 divisors (see below), whose sum is σ = 187066152. Its totient is φ = 76744896.

The previous prime is 122312299. The next prime is 122312341. The reversal of 122312331 is 133213221.

122312331 is a `hidden beast` number, since 1 + 22 + 312 + 331 = 666.

It is not a de Polignac number, because 122312331 - 2⁵ = 122312299 is a prime.

It is a super-2 number, since 2×122312331² = 29920612629307122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122312341) 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, 399561 + ... + 399866.

It is an arithmetic number, because the mean of its divisors is an integer number (15588846).

Almost surely, 2^122312331 is an apocalyptic number.

122312331 is a deficient number, since it is larger than the sum of its proper divisors (64753821).

122312331 is a wasteful number, since it uses less digits than its factorization.

122312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799450 (or 799447 counting only the distinct ones).

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

The square root of 122312331 is about 11059.4905398034. The cubic root of 122312331 is about 496.3904462818.

Adding to 122312331 its reverse (133213221), we get a palindrome (255525552).

The spelling of 122312331 in words is "one hundred twenty-two million, three hundred twelve thousand, three hundred thirty-one".