111399222 has 32 divisors (see below), whose sum is σ = 244353024. Its totient is φ = 33576800.

The previous prime is 111399203. The next prime is 111399227. The reversal of 111399222 is 222993111.

It is a self number, because there is not a number n which added to its sum of digits gives 111399222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111399227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8188 + ... + 17024.

It is an arithmetic number, because the mean of its divisors is an integer number (7636032).

Almost surely, 2^111399222 is an apocalyptic number.

111399222 is an abundant number, since it is smaller than the sum of its proper divisors (132953802).

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

111399222 is a wasteful number, since it uses less digits than its factorization.

111399222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044.

The product of its digits is 1944, while the sum is 30.

The square root of 111399222 is about 10554.5829856039. The cubic root of 111399222 is about 481.1650259371.

The spelling of 111399222 in words is "one hundred eleven million, three hundred ninety-nine thousand, two hundred twenty-two".