111120225 has 12 divisors (see below), whose sum is σ = 183718896. Its totient is φ = 59264080.

The previous prime is 111120221. The next prime is 111120239. The reversal of 111120225 is 522021111.

It is not a de Polignac number, because 111120225 - 2² = 111120221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (111120221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 740727 + ... + 740876.

It is an arithmetic number, because the mean of its divisors is an integer number (15309908).

Almost surely, 2^111120225 is an apocalyptic number.

111120225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111120225 is a deficient number, since it is larger than the sum of its proper divisors (72598671).

111120225 is a wasteful number, since it uses less digits than its factorization.

111120225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481616 (or 1481611 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 111120225 is about 10541.3578347384. The cubic root of 111120225 is about 480.7630009121.

Adding to 111120225 its reverse (522021111), we get a palindrome (633141336).

The spelling of 111120225 in words is "one hundred eleven million, one hundred twenty thousand, two hundred twenty-five".