18022226108 has 6 divisors (see below), whose sum is σ = 31538895696. Its totient is φ = 9011113052.

The previous prime is 18022226051. The next prime is 18022226111. The reversal of 18022226108 is 80162222081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2252778260 + ... + 2252778267.

It is an arithmetic number, because the mean of its divisors is an integer number (5256482616).

Almost surely, 2^18022226108 is an apocalyptic number.

It is an amenable number.

18022226108 is a deficient number, since it is larger than the sum of its proper divisors (13516669588).

18022226108 is a wasteful number, since it uses less digits than its factorization.

18022226108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505556531 (or 4505556529 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

Adding to 18022226108 its reverse (80162222081), we get a palindrome (98184448189).

The spelling of 18022226108 in words is "eighteen billion, twenty-two million, two hundred twenty-six thousand, one hundred eight".