12225091191 has 16 divisors (see below), whose sum is σ = 16663144800. Its totient is φ = 7970094720.

The previous prime is 12225091163. The next prime is 12225091199. The reversal of 12225091191 is 19119052221.

It is a happy number.

It is not a de Polignac number, because 12225091191 - 2⁵ = 12225091159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225091199) 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, 161416 + ... + 224733.

It is an arithmetic number, because the mean of its divisors is an integer number (1041446550).

Almost surely, 2^12225091191 is an apocalyptic number.

12225091191 is a deficient number, since it is larger than the sum of its proper divisors (4438053609).

12225091191 is a wasteful number, since it uses less digits than its factorization.

12225091191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386386.

The product of its (nonzero) digits is 3240, while the sum is 33.

The spelling of 12225091191 in words is "twelve billion, two hundred twenty-five million, ninety-one thousand, one hundred ninety-one".