Names of large numbers

Either of the two numbers (see long and short scales for more detail):

one trillion, a term used in basketball.

1,000,000,000,000 (one million million; <math>10^{12}</math>; SI prefix tera) - increasingly common meaning in English language usage.

1,000,000,000,000,000,000 (one million million million; <math>10^{18}</math>; SI prefix exa) - increasingly rare meaning in English language usage but frequent in many other languages.