In Japan and China you use groups of 10,000, so there's 万 (1e4), the largest bill (10,000 yen); 億 (1e8, 100 million), the approximate population of Japan and a

In Japan and China you use groups of 10,000, so there's 万 (1e4), the largest bill (10,000 yen); 億 (1e8, 100 million), the approximate population of Japan and a convenient unit for housing prices in yen; and 兆 (1e12, 1 trillion), which is used for eg really expensive infra projects like new bullet trains. On paper, there are much larger units too, but they are never used.