State media reported early last month that Supreme Leader Ali Khamenei had pardoned "tens of thousands" of prisoners including some arrested in the protests in a deadly crackdown on dissent.
"So far 82,000 people have been pardoned, including 22,000 people who participated in (the) protests," Ejei said.
He did not specify over what period the pardons were granted or if or when the people had been charged.
Iran has been swept by protests since the death of a young Iranian Kurdish woman in the custody of the country's morality police last September.
Iranians from all walks of life have taken part, marking one of the boldest challenges to the Islamic Republic since the 1979 revolution.
(Reporting by Elwely Elwelly; editing by John Stonestreet and Nick Macfie)

A protester carries a poster showing a woman wearing a gas mask, reading 'Until the last breath. Woman, life, freedom' during an Iran protest rally on the occasion of the International Women's Day in Berlin, Germany, 08 March 2023. EPA-EFE/CLEMENS BILAN