113221616291 has 8 divisors (see below), whose sum is σ = 129398178144. Its totient is φ = 97045565760.

The previous prime is 113221616267. The next prime is 113221616359. The reversal of 113221616291 is 192616122311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113221616291 - 2²² = 113217421987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113221612291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734471 + ... + 875151.

It is an arithmetic number, because the mean of its divisors is an integer number (16174772268).

Almost surely, 2^113221616291 is an apocalyptic number.

113221616291 is a deficient number, since it is larger than the sum of its proper divisors (16176561853).

113221616291 is a wasteful number, since it uses less digits than its factorization.

113221616291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255661.

The product of its digits is 7776, while the sum is 35.

The spelling of 113221616291 in words is "one hundred thirteen billion, two hundred twenty-one million, six hundred sixteen thousand, two hundred ninety-one".