If at level 20 you turn every spell slot you have into sorcery points that will give you a 109 sorcery points total (regaining sorcery points for having none not counted). Not the normal way to play a Sorceror granted. Now assuming you don't just turn them back into spells which would be wasteful, here is what you can do with those points. if your a shadow sorceror you can summon 36 Hounds of Ill Omen or Make yourself incorpreal 36 times. You can twin a cantrip 109 times or you can quicken a cantrip 36 times. I'm not sure why you'd do this, but its cool that you can.