111198222 has 48 divisors (see below), whose sum is σ = 254501520. Its totient is φ = 34992000.

The previous prime is 111198179. The next prime is 111198223. The reversal of 111198222 is 222891111.

It is a super-2 number, since 2×111198222² = 24730089151922568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111198223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184722 + ... + 185322.

It is an arithmetic number, because the mean of its divisors is an integer number (5302115).

Almost surely, 2^111198222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111198222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127250760).

111198222 is an abundant number, since it is smaller than the sum of its proper divisors (143303298).

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

111198222 is a wasteful number, since it uses less digits than its factorization.

111198222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1166 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 111198222 is about 10545.0567566040. The cubic root of 111198222 is about 480.8754595928.

The spelling of 111198222 in words is "one hundred eleven million, one hundred ninety-eight thousand, two hundred twenty-two".