111130225 has 12 divisors (see below), whose sum is σ = 138160924. Its totient is φ = 88672320.

The previous prime is 111130219. The next prime is 111130237. The reversal of 111130225 is 522031111.

It can be written as a sum of positive squares in 6 ways, for example, as 4297329 + 106832896 = 2073^2 + 10336^2 .

It is not a de Polignac number, because 111130225 - 2¹¹ = 111128177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111130199 and 111130208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4327 + ... + 15523.

Almost surely, 2^111130225 is an apocalyptic number.

It is an amenable number.

111130225 is a deficient number, since it is larger than the sum of its proper divisors (27030699).

111130225 is a wasteful number, since it uses less digits than its factorization.

111130225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11604 (or 11599 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 111130225 is about 10541.8321462638. The cubic root of 111130225 is about 480.7774221866. Note that the first 3 decimals are identical.

Adding to 111130225 its reverse (522031111), we get a palindrome (633161336).

The spelling of 111130225 in words is "one hundred eleven million, one hundred thirty thousand, two hundred twenty-five".