K-219 was a Soviet ballistic missile submarine. She was a Yankee I class ship, which carried sixteen liquid-fueled nuclear missiles for use against land targets in the US. The ship was propelled by two PWR reactors, and had two propellor shafts.
On a side note, the Soviet Navy gets credit for envisioning and building the first submarine to carry an ICBM, the Zulu Class submarine. The Zulu was a conventional diesel-electric submarine that was modified with an extended sail to carry a single nuclear-tipped long-range missile. It was also the first submarine to test launch a ballistic missile.