"Invertomerism" is frankly a new word to me, but taking a stab at a long-unanswered question: trialkylamine compounds are sort-of-but-not-really chiral. "Sort of" because the nitrogen is not planar; "not really" because it's not all that hard to invert. The energy barrier for the inversion of ammonia is only about 24 kJ/mol, and ammonia "turns itself inside out" pretty rapidly even at room temperature.