9220225 has 48 divisors (see below), whose sum is σ = 14284800. Its totient is φ = 5762880.

The previous prime is 9220219. The next prime is 9220241. The reversal of 9220225 is 5220229.

It is not a de Polignac number, because 9220225 - 2⁷ = 9220097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9220196 and 9220205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156246 + ... + 156304.

It is an arithmetic number, because the mean of its divisors is an integer number (297600).

Almost surely, 2^9220225 is an apocalyptic number.

9220225 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9220225 is a deficient number, since it is larger than the sum of its proper divisors (5064575).

9220225 is a wasteful number, since it uses less digits than its factorization.

9220225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 9220225 is about 3036.4823398136. The cubic root of 9220225 is about 209.6913455088.

The spelling of 9220225 in words is "nine million, two hundred twenty thousand, two hundred twenty-five".