100 one hundred 一百
1,000 one thousand 一千
10,000 ten thousand 一万
100,000 one hundred thousand 十万
1,000,000 one million 一百万
10,000,000 ten million 一千万
100,000,000 one hundred million 一亿
1,000,000,000 one billion 十亿
10,000,000,000 ten billion 一百亿
100,000,000,000 one hundred billion 一千亿
1,000,000,000,000 one trillion 一兆(万亿)
http://www.fane.cn/article_view.asp?id=2925
http://en.wikipedia.org/wiki/Names_of_large_numbers