100522221998 has 16 divisors (see below), whose sum is σ = 164497011840. Its totient is φ = 45690223800.

The previous prime is 100522221973. The next prime is 100522222001. The reversal of 100522221998 is 899122225001.

It is a super-2 number, since 2×100522221998² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671663 + ... + 807573.

It is an arithmetic number, because the mean of its divisors is an integer number (10281063240).

Almost surely, 2^100522221998 is an apocalyptic number.

100522221998 is a deficient number, since it is larger than the sum of its proper divisors (63974789842).

100522221998 is a wasteful number, since it uses less digits than its factorization.

100522221998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169543.

The product of its (nonzero) digits is 51840, while the sum is 41.

Adding to 100522221998 its reverse (899122225001), we get a palindrome (999644446999).

The spelling of 100522221998 in words is "one hundred billion, five hundred twenty-two million, two hundred twenty-one thousand, nine hundred ninety-eight".