11289212 has 48 divisors (see below), whose sum is σ = 22643712. Its totient is φ = 4879680.

The previous prime is 11289203. The next prime is 11289233. The reversal of 11289212 is 21298211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109553 + ... + 109655.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 2^11289212 is an apocalyptic number.

It is an amenable number.

11289212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11289212 is a wasteful number, since it uses less digits than its factorization.

11289212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 216 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

The square root of 11289212 is about 3359.9422614087. The cubic root of 11289212 is about 224.3302685482.

The spelling of 11289212 in words is "eleven million, two hundred eighty-nine thousand, two hundred twelve".