Il numero 2001998, due milioni millenovecentonovantotto in Italiano, in Inglese si dice two million one thousand nine hundred ninety-eight.
Il numero ordinale 2001998° in inglese si dice two million one thousand nine hundred ninety-eighth.
2001989: two million one thousand nine hundred eighty-nine
2001990: two million one thousand nine hundred ninety
2001991: two million one thousand nine hundred ninety-one
2001992: two million one thousand nine hundred ninety-two
2001993: two million one thousand nine hundred ninety-three
2001994: two million one thousand nine hundred ninety-four
2001995: two million one thousand nine hundred ninety-five
2001996: two million one thousand nine hundred ninety-six
2001997: two million one thousand nine hundred ninety-seven
2001999: two million one thousand nine hundred ninety-nine
2002000: two million two thousand
2002001: two million two thousand one
2002002: two million two thousand two
2002003: two million two thousand three
2002004: two million two thousand four
2002005: two million two thousand five
2002006: two million two thousand six
2002007: two million two thousand seven