11123228 has 12 divisors (see below), whose sum is σ = 19785192. Its totient is φ = 5470320.

The previous prime is 11123221. The next prime is 11123243. The reversal of 11123228 is 82232111.

11123228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11123228² = 247452402279968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123221) 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, 22550 + ... + 23037.

It is an arithmetic number, because the mean of its divisors is an integer number (1648766).

Almost surely, 2^11123228 is an apocalyptic number.

It is an amenable number.

11123228 is a deficient number, since it is larger than the sum of its proper divisors (8661964).

11123228 is a wasteful number, since it uses less digits than its factorization.

11123228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45652 (or 45650 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 11123228 is about 3335.1503714226. The cubic root of 11123228 is about 223.2254016730.

Adding to 11123228 its reverse (82232111), we get a palindrome (93355339).

The spelling of 11123228 in words is "eleven million, one hundred twenty-three thousand, two hundred twenty-eight".