12031222110111 has 16 divisors (see below), whose sum is σ = 17952263212800. Its totient is φ = 7963111034424.

The previous prime is 12031222110107. The next prime is 12031222110163. The reversal of 12031222110111 is 11101122213021.

It is a happy number.

12031222110111 is a `hidden beast` number, since 1 + 20 + 312 + 221 + 1 + 0 + 111 = 666.

It is not a de Polignac number, because 12031222110111 - 2² = 12031222110107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031222110311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1602876891 + ... + 1602884396.

It is an arithmetic number, because the mean of its divisors is an integer number (1122016450800).

Almost surely, 2^{12031222110111} is an apocalyptic number.

12031222110111 is a deficient number, since it is larger than the sum of its proper divisors (5921041102689).

12031222110111 is a wasteful number, since it uses less digits than its factorization.

12031222110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205761435 (or 3205761429 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12031222110111 its reverse (11101122213021), we get a palindrome (23132344323132).

The spelling of 12031222110111 in words is "twelve trillion, thirty-one billion, two hundred twenty-two million, one hundred ten thousand, one hundred eleven".