221232120113091 has 16 divisors (see below), whose sum is σ = 302966477974784. Its totient is φ = 143493394562784.

The previous prime is 221232120113063. The next prime is 221232120113111. The reversal of 221232120113091 is 190311021232122.

It is not a de Polignac number, because 221232120113091 - 2⁶ = 221232120113027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221232120113021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57296911 + ... + 61036056.

It is an arithmetic number, because the mean of its divisors is an integer number (18935404873424).

Almost surely, 2^{221232120113091} is an apocalyptic number.

221232120113091 is a deficient number, since it is larger than the sum of its proper divisors (81734357861693).

221232120113091 is a wasteful number, since it uses less digits than its factorization.

221232120113091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118349850.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 221232120113091 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, one hundred twenty million, one hundred thirteen thousand, ninety-one".