12031322198 has 32 divisors (see below), whose sum is σ = 20731436544. Its totient is φ = 5129764992.

The previous prime is 12031322167. The next prime is 12031322231. The reversal of 12031322198 is 89122313021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2878286 + ... + 2882462.

It is an arithmetic number, because the mean of its divisors is an integer number (647857392).

Almost surely, 2^12031322198 is an apocalyptic number.

12031322198 is a deficient number, since it is larger than the sum of its proper divisors (8700114346).

12031322198 is a wasteful number, since it uses less digits than its factorization.

12031322198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 12031322198 in words is "twelve billion, thirty-one million, three hundred twenty-two thousand, one hundred ninety-eight".