111222224 has 20 divisors (see below), whose sum is σ = 215745120. Its totient is φ = 55546080.

The previous prime is 111222193. The next prime is 111222229. The reversal of 111222224 is 422222111.

It is a super-2 number, since 2×111222224² = 24740766223012352, which contains 22 as substring.

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

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11957 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (10787256).

Almost surely, 2^111222224 is an apocalyptic number.

It is an amenable number.

111222224 is a deficient number, since it is larger than the sum of its proper divisors (104522896).

111222224 is an equidigital number, since it uses as much as digits as its factorization.

111222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8138 (or 8132 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 111222224 is about 10546.1947639895. The cubic root of 111222224 is about 480.9100558967.

Adding to 111222224 its reverse (422222111), we get a palindrome (533444335).

The spelling of 111222224 in words is "one hundred eleven million, two hundred twenty-two thousand, two hundred twenty-four".