How is Satan considered the ruler of hell according to Christians while he himself will be tormented there?

So in popular Christian belief, which, afaik, is popular amongst Catholics, and Protestants, Satan is termed the king of hell and will torment his followers who will be sent there due to his deceivement forever. However, there is also a simultaneously existing concept of Satan being tormented in the lake of fire as mentioned in the following verse: > And the devil who had deceived them was thrown into the lake of fire and sulfur where the beast and the false prophet were, and they will be tormented day and night forever and ever." - Revelation 20:10 (ESV) How does this reconcile? Is Satan the one tormenting his followers or is he being tormented himself? If so, who is tormenting him and his followers? Are they all thrown in the said "lake of fire" or just Satan, the false Prophet, and the beast? Do note that I am not a Christian, so please take anything that I said with a grain of salt. I would appreciate the clarifications.