11121224 has 16 divisors (see below), whose sum is σ = 20891520.
Its totient is φ = 5550160.
The previous prime is 11121223. The next prime is 11121307. The reversal of 11121224 is 42212111.
It is a happy number.
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 11121199 and 11121208.
It is not an unprimeable number, because it can be changed into a prime (11121223) 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, 5009 + ... + 6879.
It is an arithmetic number, because the mean of its divisors is an integer number (1305720).
Almost surely, 211121224 is an apocalyptic number.
It is an amenable number.
11121224 is a deficient number, since it is larger than the sum of its proper divisors (9770296).
11121224 is a wasteful number, since it uses less digits than its factorization.
11121224 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2620 (or 2616 counting only the distinct ones).
The product of its digits is 32, while the sum is 14.
The square root of 11121224 is about 3334.8499216606.
The cubic root of 11121224 is about 223.2119951759.
Adding to 11121224 its reverse (42212111), we get a palindrome (53333335).
The spelling of 11121224 in words is "eleven million, one hundred twenty-one thousand, two hundred twenty-four".