111199 has 6 divisors (see below), whose sum is σ = 122360. Its totient is φ = 100980.

The previous prime is 111191. The next prime is 111211. The reversal of 111199 is 991111.

It is not a de Polignac number, because 111199 - 2³ = 111191 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a nialpdrome in base 11.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339 + ... + 580.

2¹¹¹¹⁹⁹ is an apocalyptic number.

111199 is a deficient number, since it is larger than the sum of its proper divisors (11161).

111199 is an equidigital number, since it uses as much as digits as its factorization.

111199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 930 counting only the distinct ones).

The product of its digits is 81, while the sum is 22.

The square root of 111199 is about 333.4651406069. The cubic root of 111199 is about 48.0876581074.

The spelling of 111199 in words is "one hundred eleven thousand, one hundred ninety-nine".