Les Stewart from Mudjimba, Australia, holds the world's record of typing all numbers from one to one million in words (not numbers). He began in 1982 and finished with the entry "one million" on November 25, 1998.
Seven manual typewriters, 1000 ink ribbons, 19,890 pages, 16 years and seven months later, he finished with the lines
nine hundred and ninety-nine thousand, nine hundred and ninety-nine. one million.
When asked why he has undertaken this time consuming and repetitious task, Les says that he has little else to do now that he has been classed as an invalid, and can no longer work. Besides that, Les enjoys typing and used to be a police typing instructor before his sickness which meant his withdrawal from the force. Typing an average three pages a day with one finger since April 1982, Les said his secret was to type for 20 minutes on the hour, every hour
Link (via the Proceedings of the Athanasius Kircher Society)