2220225 has 24 divisors (see below), whose sum is σ = 4196160. Its totient is φ = 1014720.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220225 is 5220222.

It is not a de Polignac number, because 2220225 - 2⁴ = 2220209 is a prime.

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

2220225 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1590 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (174840).

2^2220225 is an apocalyptic number.

2220225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2220225 is a deficient number, since it is larger than the sum of its proper divisors (1975935).

2220225 is a wasteful number, since it uses less digits than its factorization.

2220225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4244 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2220225 is about 1490.0419457183. The cubic root of 2220225 is about 130.4564820179.

Adding to 2220225 its reverse (5220222), we get a palindrome (7440447).

It can be divided in two parts, 2220 and 225, that multiplied together give a triangular number (499500 = T₉₉₉).

The spelling of 2220225 in words is "two million, two hundred twenty thousand, two hundred twenty-five".