Definition from Wiktionary, the free dictionary
Simplified from 齊, in Japanese shinjitai.
Etymologically unrelated to 文, but current form classed under that radical.
Han character 
斉 (radical 67 文+4, 8 strokes, cangjie input 卜大尸中 (YKSL))
Derived characters 
- KangXi: not present, would follow page 477, character 1
- Dai Kanwa Jiten: character 13454
- Dae Jaweon: page 834, character 5
- Hanyu Da Zidian: volume 3, page 2170, character 4
- Unihan data for U+6589