11911216 has 10 divisors (see below), whose sum is σ = 23078012. Its totient is φ = 5955600.

The previous prime is 11911201. The next prime is 11911241. The reversal of 11911216 is 61211911.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372210 + ... + 372241.

Almost surely, 2^11911216 is an apocalyptic number.

11911216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11911216 is a deficient number, since it is larger than the sum of its proper divisors (11166796).

11911216 is an equidigital number, since it uses as much as digits as its factorization.

11911216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744459 (or 744453 counting only the distinct ones).

The product of its digits is 108, while the sum is 22.

The square root of 11911216 is about 3451.2629572375. The cubic root of 11911216 is about 228.3768263299.

The spelling of 11911216 in words is "eleven million, nine hundred eleven thousand, two hundred sixteen".