What would a 220km diameter asteroid impact do to Earth?
Using the impact effects calculator
The energy before impact (making a some reasonable assumptions) is $3.35 × 10^{27}$ Joules = $7.99 × 10^{11}$ MegaTons TNT, most of which would be deposited in the Earth.
The impact effects calculator doesn't discuss the formation of antipodal mountains (this is not a well-understood process) but it certainly seems possible that there could be major antipodal effects. The initial crater would fill with lava, but there would not be a planet-wide magma ocean.
Would life survive? perhaps, life is surprisingly resiliant.  This would cause mass extinction, and probably wipe out much or all of complex life. But &quot;until the sun expands to a red giant&quot; gives us millions of years for evolution to find a way. But any answer would have to be speculative.
The average interval between impacts of this size is longer than the Earth's age.