11216225 has 18 divisors (see below), whose sum is σ = 14265270. Its totient is φ = 8747200.

The previous prime is 11216201. The next prime is 11216239. The reversal of 11216225 is 52261211.

It can be written as a sum of positive squares in 3 ways, for example, as 80656 + 11135569 = 284^2 + 3337^2 .

It is not a de Polignac number, because 11216225 - 2⁸ = 11215969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11216197 and 11216206.

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 17 ways as a sum of consecutive naturals, for example, 125981 + ... + 126069.

It is an arithmetic number, because the mean of its divisors is an integer number (792515).

Almost surely, 2^11216225 is an apocalyptic number.

It is an amenable number.

11216225 is a deficient number, since it is larger than the sum of its proper divisors (3049045).

11216225 is an frugal number, since it uses more digits than its factorization.

11216225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 165 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 11216225 is about 3349.0633018801. The cubic root of 11216225 is about 223.8457763352.

Adding to 11216225 its reverse (52261211), we get a palindrome (63477436).

The spelling of 11216225 in words is "eleven million, two hundred sixteen thousand, two hundred twenty-five".