A number of 10²⁰ in modern Japanese since 17th century.

border / boundary / staircase / hundred quintillion

a digit (numeral) / a numeral / a figure, a thing expressed as a number (e.g. television viewership, score of games or sales)

a twig or shoot / a treetop / the tip or end of something / the top or peak of a mountain / the edge or verge of a road or field / a descendant / the future, later, after / the end of a period of time

A trillion billion, 10²¹, or a sextillion of modern English in modern Japanese since Edo period.

to exceed, to go over, to be more than, to cross / to surpass, to excel / to transcend

(Christianity) the Number of the Beast

an Arabic numeral

a Roman numeral

(typography) the ban on separating multiple successive digits during line breaking