12231999999 has 32 divisors (see below), whose sum is σ = 18323331840. Its totient is φ = 8064108576.

The previous prime is 12231999961. The next prime is 12232000007. The reversal of 12231999999 is 99999913221.

It is not a de Polignac number, because 12231999999 - 2⁸ = 12231999743 is a prime.

12231999999 is a modest number, since divided by 999999 gives 12231 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231989999) 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 31 ways as a sum of consecutive naturals, for example, 1767504 + ... + 1774410.

It is an arithmetic number, because the mean of its divisors is an integer number (572604120).

Almost surely, 2^12231999999 is an apocalyptic number.

12231999999 is a deficient number, since it is larger than the sum of its proper divisors (6091331841).

12231999999 is a wasteful number, since it uses less digits than its factorization.

12231999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636 (or 7630 counting only the distinct ones).

The product of its digits is 6377292, while the sum is 63.

The spelling of 12231999999 in words is "twelve billion, two hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".