11227312 has 20 divisors (see below), whose sum is σ = 22699440. Its totient is φ = 5369408.

The previous prime is 11227291. The next prime is 11227319. The reversal of 11227312 is 21372211.

It is a self number, because there is not a number n which added to its sum of digits gives 11227312.

It is not an unprimeable number, because it can be changed into a prime (11227319) 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, 14887 + ... + 15622.

It is an arithmetic number, because the mean of its divisors is an integer number (1134972).

Almost surely, 2^11227312 is an apocalyptic number.

It is an amenable number.

11227312 is an abundant number, since it is smaller than the sum of its proper divisors (11472128).

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

11227312 is a wasteful number, since it uses less digits than its factorization.

11227312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30540 (or 30534 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 11227312 is about 3350.7181319831. The cubic root of 11227312 is about 223.9195076439.

Adding to 11227312 its reverse (21372211), we get a palindrome (32599523).

The spelling of 11227312 in words is "eleven million, two hundred twenty-seven thousand, three hundred twelve".