11228812 has 12 divisors (see below), whose sum is σ = 22457680. Its totient is φ = 4812336.

The previous prime is 11228779. The next prime is 11228831. The reversal of 11228812 is 21882211.

11228812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11228812 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 200487 + ... + 200542.

Almost surely, 2^11228812 is an apocalyptic number.

It is an amenable number.

11228812 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.

11228812 is a wasteful number, since it uses less digits than its factorization.

11228812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401040 (or 401038 counting only the distinct ones).

The product of its digits is 512, while the sum is 25.

The square root of 11228812 is about 3350.9419571219. The cubic root of 11228812 is about 223.9294792888.

The spelling of 11228812 in words is "eleven million, two hundred twenty-eight thousand, eight hundred twelve".