Totti replaced Ryan Giggs as the oldest scorer in European club competitions with a superb 23rd minute chip to cancel out Sergio Aguero's early penalty at the Etihad Stadium.
"Looking at the whole 90 minutes, we had the better opportunities and could've won," the Roma captain told Sky Sport.
"We went down straight away to a penalty and came back into it, which wasn't easy against one of the strongest teams in Europe. We proved what we are worth and what we can do in an arena like this.
"Our objective is to do our best, try to get through the group knowing it is not easy against sides like Bayern Munich and Manchester City, who are on our level if not better. Playing like this, we can get there."
He added: "In all honesty, I wasn't thinking about the record. I always think of the team more than myself, that's what kept me going so long. When I score for the team, then the personal records come as a consequence."