12210122331 has 56 divisors (see below), whose sum is σ = 20166322176. Its totient is φ = 7327733040.

The previous prime is 12210122257. The next prime is 12210122377. The reversal of 12210122331 is 13322101221.

12210122331 is a `hidden beast` number, since 1 + 2 + 210 + 122 + 331 = 666.

It is not a de Polignac number, because 12210122331 - 2¹⁰ = 12210121307 is a prime.

It is a super-2 number, since 2×12210122331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12210122231) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 818566 + ... + 833348.

It is an arithmetic number, because the mean of its divisors is an integer number (360112896).

Almost surely, 2^12210122331 is an apocalyptic number.

12210122331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12210122331 is a deficient number, since it is larger than the sum of its proper divisors (7956199845).

12210122331 is a wasteful number, since it uses less digits than its factorization.

12210122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14915 (or 14900 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12210122331 its reverse (13322101221), we get a palindrome (25532223552).

The spelling of 12210122331 in words is "twelve billion, two hundred ten million, one hundred twenty-two thousand, three hundred thirty-one".