18116228222 has 16 divisors (see below), whose sum is σ = 27588405120. Its totient is φ = 8920176408.

The previous prime is 18116228189. The next prime is 18116228227. The reversal of 18116228222 is 22282261181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116228227) 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, 457913 + ... + 495899.

It is an arithmetic number, because the mean of its divisors is an integer number (1724275320).

Almost surely, 2^18116228222 is an apocalyptic number.

18116228222 is a deficient number, since it is larger than the sum of its proper divisors (9472176898).

18116228222 is a wasteful number, since it uses less digits than its factorization.

18116228222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41615.

The product of its digits is 12288, while the sum is 35.

The spelling of 18116228222 in words is "eighteen billion, one hundred sixteen million, two hundred twenty-eight thousand, two hundred twenty-two".