11219816 has 8 divisors (see below), whose sum is σ = 21037170. Its totient is φ = 5609904.

The previous prime is 11219809. The next prime is 11219821. The reversal of 11219816 is 61891211.

11219816 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., 9897316 + 1322500 = 3146^2 + 1150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701231 + ... + 701246.

Almost surely, 2^11219816 is an apocalyptic number.

It is an amenable number.

11219816 is a deficient number, since it is larger than the sum of its proper divisors (9817354).

11219816 is a wasteful number, since it uses less digits than its factorization.

11219816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402483 (or 1402479 counting only the distinct ones).

The product of its digits is 864, while the sum is 29.

The square root of 11219816 is about 3349.5993790303. The cubic root of 11219816 is about 223.8696626967.

The spelling of 11219816 in words is "eleven million, two hundred nineteen thousand, eight hundred sixteen".