Pedro PoitevinI found a palindromic equation: read the digits left to right, ignoring other symbols, and you get the same sequence of digits backwards:
212 · 4⁶³⁵ + 3⁷⁹⁹⁹⁹³ · 9 + 2 · 4⁵ − 1808
= 15 · 4² + 9³⁹⁹⁹⁹⁷ · 3 + 53 · 64²¹²
It uses every digit 0–9, and 0 sits dead centre.