111099216 has 80 divisors (see below), whose sum is σ = 306033984. Its totient is φ = 34609152.

The previous prime is 111099193. The next prime is 111099253. The reversal of 111099216 is 612990111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140775 + ... + 141561.

Almost surely, 2^111099216 is an apocalyptic number.

111099216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111099216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153016992).

111099216 is an abundant number, since it is smaller than the sum of its proper divisors (194934768).

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

111099216 is a wasteful number, since it uses less digits than its factorization.

111099216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 30.

The square root of 111099216 is about 10540.3612841306. The cubic root of 111099216 is about 480.7327004380.

The spelling of 111099216 in words is "one hundred eleven million, ninety-nine thousand, two hundred sixteen".