11215225 has 24 divisors (see below), whose sum is σ = 16735040. Its totient is φ = 7283520.

The previous prime is 11215213. The next prime is 11215229. The reversal of 11215225 is 52251211.

11215225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11215225 - 2⁷ = 11215097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (11215229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1639 + ... + 5011.

Almost surely, 2^11215225 is an apocalyptic number.

It is an amenable number.

11215225 is a deficient number, since it is larger than the sum of its proper divisors (5519815).

11215225 is a wasteful number, since it uses less digits than its factorization.

11215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409 (or 3404 counting only the distinct ones).

The product of its digits is 200, while the sum is 19.

The square root of 11215225 is about 3348.9140030762. The cubic root of 11215225 is about 223.8391236980.

Adding to 11215225 its reverse (52251211), we get a palindrome (63466436).

The spelling of 11215225 in words is "eleven million, two hundred fifteen thousand, two hundred twenty-five".