12291197316 has 24 divisors (see below), whose sum is σ = 29604605184. Its totient is φ = 3964902240.

The previous prime is 12291197273. The next prime is 12291197329. The reversal of 12291197316 is 61379119221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16520055 + ... + 16520798.

It is an arithmetic number, because the mean of its divisors is an integer number (1233525216).

Almost surely, 2^12291197316 is an apocalyptic number.

It is an amenable number.

12291197316 is an abundant number, since it is smaller than the sum of its proper divisors (17313407868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12291197316 is a wasteful number, since it uses less digits than its factorization.

12291197316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33040891 (or 33040889 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The spelling of 12291197316 in words is "twelve billion, two hundred ninety-one million, one hundred ninety-seven thousand, three hundred sixteen".