22404442191 has 16 divisors (see below), whose sum is σ = 30389651040. Its totient is φ = 14679221760.

The previous prime is 22404442187. The next prime is 22404442223. The reversal of 22404442191 is 19124440422.

It is not a de Polignac number, because 22404442191 - 2² = 22404442187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404442691) 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, 120496 + ... + 243573.

It is an arithmetic number, because the mean of its divisors is an integer number (1899353190).

Almost surely, 2^22404442191 is an apocalyptic number.

22404442191 is a deficient number, since it is larger than the sum of its proper divisors (7985208849).

22404442191 is a wasteful number, since it uses less digits than its factorization.

22404442191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364426.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 22404442191 in words is "twenty-two billion, four hundred four million, four hundred forty-two thousand, one hundred ninety-one".