If you would like to see the full 1 minute and 50 seconds of me listing off all of the objects, hold space before mball starts mentioning the numbers. There are 121 symbols total. Also, you can press 'C' before the numbers pop up to look at each symbol one at a time, and go to the next by pressing space, or you can go full on speed mode by pressing 'S'.
@masterofmath2020 and @itz_tyler nobody else. Sources from RapidTables: https://www.rapidtables.com/math/symbols/Basic_Math_Symbols.html