111202225 has 6 divisors (see below), whose sum is σ = 137890790. Its totient is φ = 88961760.

The previous prime is 111202213. The next prime is 111202243. The reversal of 111202225 is 522202111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11861136 + 99341089 = 3444^2 + 9967^2 .

It is not a de Polignac number, because 111202225 - 2¹⁷ = 111071153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111202199 and 111202208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2224020 + ... + 2224069.

Almost surely, 2^111202225 is an apocalyptic number.

It is an amenable number.

111202225 is a deficient number, since it is larger than the sum of its proper divisors (26688565).

111202225 is an equidigital number, since it uses as much as digits as its factorization.

111202225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448099 (or 4448094 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 111202225 is about 10545.2465594693. The cubic root of 111202225 is about 480.8812298330.

Adding to 111202225 its reverse (522202111), we get a palindrome (633404336).

The spelling of 111202225 in words is "one hundred eleven million, two hundred two thousand, two hundred twenty-five".