12220032091 has 4 divisors (see below), whose sum is σ = 12267581112. Its totient is φ = 12172483072.

The previous prime is 12220032031. The next prime is 12220032107. The reversal of 12220032091 is 19023002221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220032091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220032031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23774125 + ... + 23774638.

It is an arithmetic number, because the mean of its divisors is an integer number (3066895278).

Almost surely, 2^12220032091 is an apocalyptic number.

12220032091 is a deficient number, since it is larger than the sum of its proper divisors (47549021).

12220032091 is an equidigital number, since it uses as much as digits as its factorization.

12220032091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47549020.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 12220032091 in words is "twelve billion, two hundred twenty million, thirty-two thousand, ninety-one".