Il numero 16821, sedicimilaottocentoventuno in Italiano, in Inglese si dice sixteen thousand eight hundred twenty-one.
Il numero ordinale 16821° in inglese si dice sixteen thousand eight hundred twenty-first.
16812: sixteen thousand eight hundred twelve
16813: sixteen thousand eight hundred thirteen
16814: sixteen thousand eight hundred fourteen
16815: sixteen thousand eight hundred fifteen
16816: sixteen thousand eight hundred sixteen
16817: sixteen thousand eight hundred seventeen
16818: sixteen thousand eight hundred eighteen
16819: sixteen thousand eight hundred nineteen
16820: sixteen thousand eight hundred twenty
16822: sixteen thousand eight hundred twenty-two
16823: sixteen thousand eight hundred twenty-three
16824: sixteen thousand eight hundred twenty-four
16825: sixteen thousand eight hundred twenty-five
16826: sixteen thousand eight hundred twenty-six
16827: sixteen thousand eight hundred twenty-seven
16828: sixteen thousand eight hundred twenty-eight
16829: sixteen thousand eight hundred twenty-nine
16830: sixteen thousand eight hundred thirty