11213228 has 24 divisors (see below), whose sum is σ = 21262080. Its totient is φ = 5143680.

The previous prime is 11213221. The next prime is 11213231. The reversal of 11213228 is 82231211.

11213228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11213221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9368 + ... + 10496.

It is an arithmetic number, because the mean of its divisors is an integer number (885920).

Almost surely, 2^11213228 is an apocalyptic number.

It is an amenable number.

11213228 is a deficient number, since it is larger than the sum of its proper divisors (10048852).

11213228 is a wasteful number, since it uses less digits than its factorization.

11213228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

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

The square root of 11213228 is about 3348.6158334452. The cubic root of 11213228 is about 223.8258371979.

Adding to 11213228 its reverse (82231211), we get a palindrome (93444439).

The spelling of 11213228 in words is "eleven million, two hundred thirteen thousand, two hundred twenty-eight".