No, he was not.
Hercules was immortal because he was one of the 12 Olympian gods.
It's not clear how long he was bound to the rock. If you base a guess on the time of Zeus to the time of Hercules. It would be 12 generations or 240 years.
Hercules went down o the underworlds as one of his 12 labours.
Hercules - 1998 Hercules and the Gorgon 2-12 was released on: USA: 9 January 1999
Hercules - 1998 Hercules and the Living Legend 1-12 was released on: USA: 15 September 1998
Hercules was an illegitimate son of Zeus so he was despised by Zeus' wife Hera. One day Hera made Hercules mad and in a rage he killed his wife and children. As a punishment for this Hercules was condemned to perform 12 labours for his rival Eurystheus.
Half in the Bag - 2011 Prometheus 2-12 was released on: USA: 11 June 2012
Hercules Renda died on 2005-10-12.
Young Hercules was created on 1998-09-12.
Oceanus, Atlas, Prometheus, Hyperion, Cronus, Rhea. to name a few
Prometheus was a titan who took Zeus's (Jupiter) side when he overthrew his father, the titan king Kronos (Cronus). When the Olympians took over, Prometheus was therefore favored by Zeus and not punished as the others were. When Prometheus discovered that Zeus was hording fire away from mankind so that they would be blind to worship the gods (Zeus was afraid they would grow too independent), he stole the fire and gave it to the mortals and was named Protector of Mankind, Bringer of Fire. But, Zeus was angered when he looked down at the fires of mankind and had Prometheus chained to a rock on the Caucasus Mountains with celestial bindings. To make the sufferings worse, Zeus's sacred animal, an eagle, swooped down every night to tear out his liver. Being immortal, it always grew back. Prometheus was later freed by the hero Hercules (Herakles) as one of his 12 labors.
The 12 labors