11219218 has 8 divisors (see below), whose sum is σ = 17818812. Its totient is φ = 5279616.

The previous prime is 11219209. The next prime is 11219231. The reversal of 11219218 is 81291211.

It can be written as a sum of positive squares in 2 ways, for example, as 9903609 + 1315609 = 3147^2 + 1147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11219192 and 11219201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164955 + ... + 165022.

Almost surely, 2^11219218 is an apocalyptic number.

11219218 is a deficient number, since it is larger than the sum of its proper divisors (6599594).

11219218 is a wasteful number, since it uses less digits than its factorization.

11219218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329996.

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

The square root of 11219218 is about 3349.5101134345. The cubic root of 11219218 is about 223.8656853160.

The spelling of 11219218 in words is "eleven million, two hundred nineteen thousand, two hundred eighteen".