A few of you nailed it!

24 24 22 9 9 9 9 22 24 22 9 9

Let's replace those numbers with the letter they represent (if 1=A, 2=B, etc)

X X V I I I I V X V I I

Hey! Those look like roman numerals! Let's divvy them up into numerals that make sense:

XXVIII | IV | XVII

= 28, 4, 17

:)