Rudi Garcia's continue to cling to the coat-tails of leaders Juventus after another convincing win at the Stadio Olimpico
Shorn of the in-form Mattia Destro through suspension, the Giallorossi's captain made a timely and welcome to return to the starting line-up as Roma cut Juventus' lead at the top to five points.
The home side were fast out of the blocks as Andrea Consigli twice denied Gervinho before Rodrigo Taddei made it 1-0 with just 12 minutes gone.
Dodo's ball across the edge of the box found the midfielder 18 yards out and his strike took a deflection on its way into the back of the net.
Rudi Garcia's men were in cruise control and confirmed their dominance by doubling their advantage just before the half-time break.
A swift counter-attack saw the ball break to Totti and he produced a delightful chipped pass over the top of the back four, which Daniele De Rossi diverted into the path of Adem Ljajic to sweep home from eight yards.
That goal effectively ended the game as a contest and Gervinho rubbed salt into Atalanta wounds just past the hour mark when he beat Consigli from 20 yards with a fierce effort.
To their credit, the visitors did pull a goal back through Giulio Migliaccio's strike with 11 minutes remaining but there was to be no late rally as Roma saw out a deserved win.