12198198231 has 6 divisors (see below), whose sum is σ = 17619619680. Its totient is φ = 8132132148.

The previous prime is 12198198217. The next prime is 12198198289. The reversal of 12198198231 is 13289189121.

It is not a de Polignac number, because 12198198231 - 2¹⁸ = 12197936087 is a prime.

It is a super-2 number, since 2×12198198231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198198211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 677677671 + ... + 677677688.

It is an arithmetic number, because the mean of its divisors is an integer number (2936603280).

Almost surely, 2^12198198231 is an apocalyptic number.

12198198231 is a deficient number, since it is larger than the sum of its proper divisors (5421421449).

12198198231 is a wasteful number, since it uses less digits than its factorization.

12198198231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355355365 (or 1355355362 counting only the distinct ones).

The product of its digits is 62208, while the sum is 45.

The spelling of 12198198231 in words is "twelve billion, one hundred ninety-eight million, one hundred ninety-eight thousand, two hundred thirty-one".