Originally Posted by
Navpi
Trillion (short scale) (1,000,000,000,000; one million million; 1012; SI prefix: tera-), the current meaning in both American and British English
Trillion (long scale) (1,000,000,000,000,000,000; one million million
million; 1018; SI prefix: exa-), the former meaning in British English and current usage in many non-English-speaking countries
Usually a "million" is added at the end ?
No, not if you don't want to confuse the situation...