11219225 has 6 divisors (see below), whose sum is σ = 13911870. Its totient is φ = 8975360.

The previous prime is 11219209. The next prime is 11219231. The reversal of 11219225 is 52291211.

It can be written as a sum of positive squares in 3 ways, for example, as 143641 + 11075584 = 379^2 + 3328^2 .

It is not a de Polignac number, because 11219225 - 2⁴ = 11219209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11219225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224360 + ... + 224409.

It is an arithmetic number, because the mean of its divisors is an integer number (2318645).

Almost surely, 2^11219225 is an apocalyptic number.

It is an amenable number.

11219225 is a deficient number, since it is larger than the sum of its proper divisors (2692645).

11219225 is an equidigital number, since it uses as much as digits as its factorization.

11219225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448779 (or 448774 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 11219225 is about 3349.5111583633. The cubic root of 11219225 is about 223.8657318748.

The spelling of 11219225 in words is "eleven million, two hundred nineteen thousand, two hundred twenty-five".