12210111331 has 12 divisors (see below), whose sum is σ = 14210506296. Its totient is φ = 10447152320.

The previous prime is 12210111323. The next prime is 12210111337. The reversal of 12210111331 is 13311101221.

It is a happy number.

It is not a de Polignac number, because 12210111331 - 2³ = 12210111323 is a prime.

It is a super-2 number, since 2×12210111331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210111337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2965885 + ... + 2969998.

It is an arithmetic number, because the mean of its divisors is an integer number (1184208858).

Almost surely, 2^12210111331 is an apocalyptic number.

12210111331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12210111331 is a deficient number, since it is larger than the sum of its proper divisors (2000394965).

12210111331 is a wasteful number, since it uses less digits than its factorization.

12210111331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935922 (or 5935911 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12210111331 its reverse (13311101221), we get a palindrome (25521212552).

The spelling of 12210111331 in words is "twelve billion, two hundred ten million, one hundred eleven thousand, three hundred thirty-one".