11251216 has 20 divisors (see below), whose sum is σ = 21960400. Its totient is φ = 5584032.

The previous prime is 11251213. The next prime is 11251277. The reversal of 11251216 is 61215211.

It is a super-2 number, since 2×11251216² = 253179722957312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11251193 and 11251202.

It is not an unprimeable number, because it can be changed into a prime (11251213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 306 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (1098020).

Almost surely, 2^11251216 is an apocalyptic number.

11251216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11251216 is a deficient number, since it is larger than the sum of its proper divisors (10709184).

11251216 is a wasteful number, since it uses less digits than its factorization.

11251216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206 (or 5200 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 11251216 is about 3354.2832319290. The cubic root of 11251216 is about 224.0783102047.

Adding to 11251216 its reverse (61215211), we get a palindrome (72466427).

The spelling of 11251216 in words is "eleven million, two hundred fifty-one thousand, two hundred sixteen".