The City keeper shares the accolade with his international team-mate Alisson Becker, who also recorded 20 shutouts.
It is the third successive year that the Brazilian has won the prize, having done so in 2019/20 and 2020/21.
Incredibly, with 91 shutouts in 182 Premier League appearances for City, Ederson averages a clean sheet in every other game.
In reaching 20 this season, he has also equalled his own personal record set in 2018/19.
Last January, the 28-year-old, considered by many to be the best goalkeeper in the world, also became the first custodian to have played at least 100 Premier League matches and kept a clean sheet in 50 percent of them.
Everyone at Manchester City congratulates Ederson on another remarkable achievement.