111224 has 8 divisors (see below), whose sum is σ = 208560. Its totient is φ = 55608.

The previous prime is 111217. The next prime is 111227. The reversal of 111224 is 422111.

It is a tau number, because it is divible by the number of its divisors (8).

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 (111227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6944 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (26070).

2¹¹¹²²⁴ is an apocalyptic number.

It is an amenable number.

111224 is a deficient number, since it is larger than the sum of its proper divisors (97336).

111224 is a wasteful number, since it uses less digits than its factorization.

111224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13909 (or 13905 counting only the distinct ones).

The product of its digits is 16, while the sum is 11.

The square root of 111224 is about 333.5026236778. The cubic root of 111224 is about 48.0912615612.

Adding to 111224 its reverse (422111), we get a palindrome (533335).

The spelling of 111224 in words is "one hundred eleven thousand, two hundred twenty-four", and thus it is an iban number.