100111198 has 16 divisors (see below), whose sum is σ = 173455344. Its totient is φ = 42828160.

The previous prime is 100111189. The next prime is 100111229. The reversal of 100111198 is 891111001.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 133465 + ... + 134212.

It is an arithmetic number, because the mean of its divisors is an integer number (10840959).

Almost surely, 2^100111198 is an apocalyptic number.

100111198 is a deficient number, since it is larger than the sum of its proper divisors (73344146).

100111198 is a wasteful number, since it uses less digits than its factorization.

100111198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267707.

The product of its (nonzero) digits is 72, while the sum is 22.

The square root of 100111198 is about 10005.5583552344. The cubic root of 100111198 is about 464.3308647621.

Adding to 100111198 its reverse (891111001), we get a palindrome (991222199).

The spelling of 100111198 in words is "one hundred million, one hundred eleven thousand, one hundred ninety-eight".