2201225 has 18 divisors (see below), whose sum is σ = 2961306. Its totient is φ = 1622400.

The previous prime is 2201209. The next prime is 2201273. The reversal of 2201225 is 5221022.

It can be written as a sum of positive squares in 9 ways, for example, as 1628176 + 573049 = 1276^2 + 757^2 .

It is not a de Polignac number, because 2201225 - 2⁴ = 2201209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3965 + ... + 4485.

It is an arithmetic number, because the mean of its divisors is an integer number (164517).

2^2201225 is an apocalyptic number.

2201225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2201225 is a deficient number, since it is larger than the sum of its proper divisors (760081).

2201225 is a wasteful number, since it uses less digits than its factorization.

2201225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2201225 is about 1483.6525873667. The cubic root of 2201225 is about 130.0832799715.

Adding to 2201225 its reverse (5221022), we get a palindrome (7422247).

The spelling of 2201225 in words is "two million, two hundred one thousand, two hundred twenty-five".