A sextillion is a numerical value represented by (10^{21}) in the short scale, commonly used in the United States and most English-speaking countries. In the long scale, which is used in some European countries, a sextillion represents (10^{36}). The term is often used in scientific contexts to describe very large quantities, such as data storage or astronomical measurements.
septillian
A sextillian is a thousand pentallion, which in turn is a thousand quadrillion, which is a thousand billion. That makes it:Sextillian = 1000 * Pentallion= 1000 * 1000 * Quadrillion= 1000 * 1000 * 1000 * Trillion= 1000 * 1000 * 1000 * 1000 * Billion= 1000 * 1000 * 1000 * 1000 * 1000 * Million= 1000 * 1000 * 1000 * 1000 * 1000 * 1000 * Thousand= (10^3)^6 * Thousand= 10^21That makes it 21 zeroes!