111224225 has 12 divisors (see below), whose sum is σ = 157620864. Its totient is φ = 76267920.

The previous prime is 111224213. The next prime is 111224227. The reversal of 111224225 is 522422111.

It is not a de Polignac number, because 111224225 - 2¹⁴ = 111207841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111224197 and 111224206.

It is not an unprimeable number, because it can be changed into a prime (111224227) 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 11 ways as a sum of consecutive naturals, for example, 317609 + ... + 317958.

It is an arithmetic number, because the mean of its divisors is an integer number (13135072).

Almost surely, 2^111224225 is an apocalyptic number.

It is an amenable number.

111224225 is a deficient number, since it is larger than the sum of its proper divisors (46396639).

111224225 is an equidigital number, since it uses as much as digits as its factorization.

111224225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635584 (or 635579 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 111224225 is about 10546.2896319037. The cubic root of 111224225 is about 480.9129398984.

Adding to 111224225 its reverse (522422111), we get a palindrome (633646336).

The spelling of 111224225 in words is "one hundred eleven million, two hundred twenty-four thousand, two hundred twenty-five".