18395331222 has 16 divisors (see below), whose sum is σ = 37573443072. Its totient is φ = 6001313640.

The previous prime is 18395331179. The next prime is 18395331223. The reversal of 18395331222 is 22213359381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18395331223) 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, 32615554 + ... + 32616117.

It is an arithmetic number, because the mean of its divisors is an integer number (2348340192).

Almost surely, 2^18395331222 is an apocalyptic number.

18395331222 is an abundant number, since it is smaller than the sum of its proper divisors (19178111850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18395331222 is a wasteful number, since it uses less digits than its factorization.

18395331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65231723.

The product of its digits is 77760, while the sum is 39.

The spelling of 18395331222 in words is "eighteen billion, three hundred ninety-five million, three hundred thirty-one thousand, two hundred twenty-two".