12231112130021 has 16 divisors (see below), whose sum is σ = 12261549139200. Its totient is φ = 12200725625088.

The previous prime is 12231112129993. The next prime is 12231112130093. The reversal of 12231112130021 is 12003121113221.

It is a cyclic number.

It is not a de Polignac number, because 12231112130021 - 2³⁸ = 11956234223077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12231112129975 and 12231112130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231112190021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3288815600 + ... + 3288819318.

It is an arithmetic number, because the mean of its divisors is an integer number (766346821200).

Almost surely, 2^{12231112130021} is an apocalyptic number.

It is an amenable number.

12231112130021 is a deficient number, since it is larger than the sum of its proper divisors (30437009179).

12231112130021 is a wasteful number, since it uses less digits than its factorization.

12231112130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12231112130021 its reverse (12003121113221), we get a palindrome (24234233243242).

The spelling of 12231112130021 in words is "twelve trillion, two hundred thirty-one billion, one hundred twelve million, one hundred thirty thousand, twenty-one".