Prior to this, in an worldwide game, the fastest T20 century was scored by Richard Levi, also a South African.
Chasing a mammoth 225 for a win, Bangladesh could only manage 141 all out in 18.3 overs.
The South African threatened to take Bangladesh's attack apart thereafter, and latched upon some wayward bowling from Mohammad Saifuddin in the penultimate over by striking the first five balls over the fence for six, before hitting the last ball for a single.
While South Africa gained valuable preparation under new coach Ottis Gibson ahead of tours by India and Australia, Bangladesh failed to live up to the promise it showed recently in home series.
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South Africa whitewashed the Test, ODI and T20I series against Bangladesh.
The powerful Proteas left-hander was simply sensational as he galloped to an unbeaten 101 off just 36 deliveries, reaching his landmark off 35. Miller said. "Don't quite know what went on there but I was just trying to watch the ball and back myself".
Richard Levi took the T20 world and global cricket by storm as the SA batsman created history by scoring the fastest century in T20 internationals in just 45 balls where he smashed 13 sixes and remained unbeaten (Although now caught by Miller) 0n 117 in 2012.
While talking to SuperSport television the South African batter said, "I was pretty scratchy to begin with", "But towards the back end it came out quite sweet".
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