12221310091 has 8 divisors (see below), whose sum is σ = 12519177840. Its totient is φ = 11926466688.

The previous prime is 12221310083. The next prime is 12221310137. The reversal of 12221310091 is 19001312221.

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 12221310091 - 2³ = 12221310083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221310011) 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, 747906 + ... + 764071.

It is an arithmetic number, because the mean of its divisors is an integer number (1564897230).

Almost surely, 2^12221310091 is an apocalyptic number.

12221310091 is a deficient number, since it is larger than the sum of its proper divisors (297867749).

12221310091 is a wasteful number, since it uses less digits than its factorization.

12221310091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512173.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 12221310091 in words is "twelve billion, two hundred twenty-one million, three hundred ten thousand, ninety-one".