11117216 has 24 divisors (see below), whose sum is σ = 23877504. Its totient is φ = 5053120.

The previous prime is 11117213. The next prime is 11117321. The reversal of 11117216 is 61271111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11117213) 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, 15440 + ... + 16143.

It is an arithmetic number, because the mean of its divisors is an integer number (994896).

Almost surely, 2^11117216 is an apocalyptic number.

11117216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11117216 is an abundant number, since it is smaller than the sum of its proper divisors (12760288).

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

11117216 is a wasteful number, since it uses less digits than its factorization.

11117216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31604 (or 31596 counting only the distinct ones).

The product of its digits is 84, while the sum is 20.

The square root of 11117216 is about 3334.2489409161. The cubic root of 11117216 is about 223.1851773493.

Adding to 11117216 its reverse (61271111), we get a palindrome (72388327).

The spelling of 11117216 in words is "eleven million, one hundred seventeen thousand, two hundred sixteen".