Il numero 20821, ventimilaottocentoventuno in Italiano, in Inglese si dice twenty thousand eight hundred twenty-one.
Il numero ordinale 20821° in inglese si dice twenty thousand eight hundred twenty-first.
20812: twenty thousand eight hundred twelve
20813: twenty thousand eight hundred thirteen
20814: twenty thousand eight hundred fourteen
20815: twenty thousand eight hundred fifteen
20816: twenty thousand eight hundred sixteen
20817: twenty thousand eight hundred seventeen
20818: twenty thousand eight hundred eighteen
20819: twenty thousand eight hundred nineteen
20820: twenty thousand eight hundred twenty
20822: twenty thousand eight hundred twenty-two
20823: twenty thousand eight hundred twenty-three
20824: twenty thousand eight hundred twenty-four
20825: twenty thousand eight hundred twenty-five
20826: twenty thousand eight hundred twenty-six
20827: twenty thousand eight hundred twenty-seven
20828: twenty thousand eight hundred twenty-eight
20829: twenty thousand eight hundred twenty-nine
20830: twenty thousand eight hundred thirty