122331213 has 24 divisors (see below), whose sum is σ = 184218528. Its totient is φ = 78151392.

The previous prime is 122331191. The next prime is 122331217. The reversal of 122331213 is 312133221.

122331213 is a `hidden beast` number, since 122 + 331 + 213 = 666.

It is not a de Polignac number, because 122331213 - 2⁶ = 122331149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122331217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19570 + ... + 25052.

It is an arithmetic number, because the mean of its divisors is an integer number (7675772).

Almost surely, 2^122331213 is an apocalyptic number.

It is an amenable number.

122331213 is a deficient number, since it is larger than the sum of its proper divisors (61887315).

122331213 is a wasteful number, since it uses less digits than its factorization.

122331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593 (or 5590 counting only the distinct ones).

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

The square root of 122331213 is about 11060.3441628188. The cubic root of 122331213 is about 496.4159884384.

Adding to 122331213 its reverse (312133221), we get a palindrome (434464434).

The spelling of 122331213 in words is "one hundred twenty-two million, three hundred thirty-one thousand, two hundred thirteen".