11121218 has 8 divisors (see below), whose sum is σ = 16746048. Its totient is φ = 5539204.

The previous prime is 11121217. The next prime is 11121223. The reversal of 11121218 is 81212111.

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 = 11121196 and 11121205.

It is not an unprimeable number, because it can be changed into a prime (11121217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10046 + ... + 11097.

It is an arithmetic number, because the mean of its divisors is an integer number (2093256).

Almost surely, 2^11121218 is an apocalyptic number.

11121218 is a deficient number, since it is larger than the sum of its proper divisors (5624830).

11121218 is a wasteful number, since it uses less digits than its factorization.

11121218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21408.

The product of its digits is 32, while the sum is 17.

The square root of 11121218 is about 3334.8490220698. The cubic root of 11121218 is about 223.2119550343.

Adding to 11121218 its reverse (81212111), we get a palindrome (92333329).

The spelling of 11121218 in words is "eleven million, one hundred twenty-one thousand, two hundred eighteen".