11199812 has 12 divisors (see below), whose sum is σ = 21107436. Its totient is φ = 5169120.

The previous prime is 11199809. The next prime is 11199833. The reversal of 11199812 is 21899111.

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 9388096 = 1346^2 + 3064^2 .

It is an unprimeable number.

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, 107639 + ... + 107742.

It is an arithmetic number, because the mean of its divisors is an integer number (1758953).

Almost surely, 2^11199812 is an apocalyptic number.

It is an amenable number.

11199812 is a deficient number, since it is larger than the sum of its proper divisors (9907624).

11199812 is a wasteful number, since it uses less digits than its factorization.

11199812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215398 (or 215396 counting only the distinct ones).

The product of its digits is 1296, while the sum is 32.

The square root of 11199812 is about 3346.6120181461. The cubic root of 11199812 is about 223.7365365431.

The spelling of 11199812 in words is "eleven million, one hundred ninety-nine thousand, eight hundred twelve".