Extension:Numbertext

The Numbertext extension allows to transform numbers into words. It based on the numbertext.org service and supports more than thirty languages.

Usage
where:
 * 1) number - the number to transform into words
 * 1) currency - currency of money (sample: "USD", "EUR", "RUB", etc)
 * 1) language - language for transform (optional, sample "en", "en_US", "ru", "ru_RU", etc)

Default language sets by variable, which by default equally   (see localSettings>Special:MyLanguage/Manual:LocalSettings.php#Site language|Site language).

You can specify a different default language, or an empty string, and will use the language specified in the user preferences.