11225217 has 4 divisors (see below), whose sum is σ = 14966960. Its totient is φ = 7483476.

The previous prime is 11225191. The next prime is 11225237. The reversal of 11225217 is 71252211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71252211 = 3 ⋅23750737.

It is not a de Polignac number, because 11225217 - 2⁷ = 11225089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11225193 and 11225202.

It is not an unprimeable number, because it can be changed into a prime (11225237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870867 + ... + 1870872.

It is an arithmetic number, because the mean of its divisors is an integer number (3741740).

Almost surely, 2^11225217 is an apocalyptic number.

It is an amenable number.

11225217 is a deficient number, since it is larger than the sum of its proper divisors (3741743).

11225217 is an equidigital number, since it uses as much as digits as its factorization.

11225217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741742.

The product of its digits is 280, while the sum is 21.

The square root of 11225217 is about 3350.4054978465. The cubic root of 11225217 is about 223.9055790933.

Adding to 11225217 its reverse (71252211), we get a palindrome (82477428).

The spelling of 11225217 in words is "eleven million, two hundred twenty-five thousand, two hundred seventeen".