11216812 has 6 divisors (see below), whose sum is σ = 19629428. Its totient is φ = 5608404.

The previous prime is 11216791. The next prime is 11216813. The reversal of 11216812 is 21861211.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11216813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402098 + ... + 1402105.

Almost surely, 2^11216812 is an apocalyptic number.

It is an amenable number.

11216812 is a deficient number, since it is larger than the sum of its proper divisors (8412616).

11216812 is a wasteful number, since it uses less digits than its factorization.

11216812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804207 (or 2804205 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 11216812 is about 3349.1509371780. The cubic root of 11216812 is about 223.8496812491.

The spelling of 11216812 in words is "eleven million, two hundred sixteen thousand, eight hundred twelve".