11225228 has 24 divisors (see below), whose sum is σ = 22687392. Its totient is φ = 4760064.

The previous prime is 11225191. The next prime is 11225237. The reversal of 11225228 is 82252211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650 + ... + 4782.

It is an arithmetic number, because the mean of its divisors is an integer number (945308).

Almost surely, 2^11225228 is an apocalyptic number.

It is an amenable number.

11225228 is an abundant number, since it is smaller than the sum of its proper divisors (11462164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11225228 is a wasteful number, since it uses less digits than its factorization.

11225228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241 (or 4239 counting only the distinct ones).

The product of its digits is 640, while the sum is 23.

The square root of 11225228 is about 3350.4071394384. The cubic root of 11225228 is about 223.9056522310.

Adding to 11225228 its reverse (82252211), we get a palindrome (93477439).

The spelling of 11225228 in words is "eleven million, two hundred twenty-five thousand, two hundred twenty-eight".