The Rich, The Independent One, The Wealthy.
Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Al-Ghaniyy (in Arabic: ٱلْغَنيُّ), He is The One who is self-sufficient and independent. He does not need anything as He is completely satisfied and free from dependence. Allah is The One whose wealth and riches all others depend on.