11015228 has 12 divisors (see below), whose sum is σ = 22030512. Its totient is φ = 4720800.

The previous prime is 11015203. The next prime is 11015237. The reversal of 11015228 is 82251011.

It is a happy number.

11015228 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196673 + ... + 196728.

It is an arithmetic number, because the mean of its divisors is an integer number (1835876).

Almost surely, 2^11015228 is an apocalyptic number.

It is an amenable number.

11015228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11015228 is a wasteful number, since it uses less digits than its factorization.

11015228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393412 (or 393410 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 11015228 is about 3318.9197037590. The cubic root of 11015228 is about 222.5005883080.

Adding to 11015228 its reverse (82251011), we get a palindrome (93266239).

The spelling of 11015228 in words is "eleven million, fifteen thousand, two hundred twenty-eight".