2216225 has 12 divisors (see below), whose sum is σ = 2998320. Its totient is φ = 1611600.

The previous prime is 2216213. The next prime is 2216231. The reversal of 2216225 is 5226122.

It is not a de Polignac number, because 2216225 - 2⁶ = 2216161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2216197 and 2216206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3755 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (249860).

2^2216225 is an apocalyptic number.

2216225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2216225 is a deficient number, since it is larger than the sum of its proper divisors (782095).

2216225 is a wasteful number, since it uses less digits than its factorization.

2216225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080 (or 8075 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 2216225 is about 1488.6990965269. The cubic root of 2216225 is about 130.3780906207.

It can be divided in two parts, 221 and 6225, that added together give a palindrome (6446).

The spelling of 2216225 in words is "two million, two hundred sixteen thousand, two hundred twenty-five".