11219812 has 6 divisors (see below), whose sum is σ = 19634678. Its totient is φ = 5609904.

The previous prime is 11219809. The next prime is 11219821. The reversal of 11219812 is 21891211.

11219812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8608356 + 2611456 = 2934^2 + 1616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402473 + ... + 1402480.

Almost surely, 2^11219812 is an apocalyptic number.

It is an amenable number.

11219812 is a deficient number, since it is larger than the sum of its proper divisors (8414866).

11219812 is a wasteful number, since it uses less digits than its factorization.

11219812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804957 (or 2804955 counting only the distinct ones).

The product of its digits is 288, while the sum is 25.

The square root of 11219812 is about 3349.5987819439. The cubic root of 11219812 is about 223.8696360926.

The spelling of 11219812 in words is "eleven million, two hundred nineteen thousand, eight hundred twelve".