111321222 has 16 divisors (see below), whose sum is σ = 222891312. Its totient is φ = 37065600.

The previous prime is 111321179. The next prime is 111321229. The reversal of 111321222 is 222123111.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4279 + ... + 15522.

It is an arithmetic number, because the mean of its divisors is an integer number (13930707).

Almost surely, 2^111321222 is an apocalyptic number.

111321222 is an abundant number, since it is smaller than the sum of its proper divisors (111570090).

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

111321222 is a wasteful number, since it uses less digits than its factorization.

111321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20743.

The product of its digits is 48, while the sum is 15.

The square root of 111321222 is about 10550.8872612686. The cubic root of 111321222 is about 481.0526982976.

Adding to 111321222 its reverse (222123111), we get a palindrome (333444333).

The spelling of 111321222 in words is "one hundred eleven million, three hundred twenty-one thousand, two hundred twenty-two".