Zettotetrep

Zettotetrep is equal to \(f_{\varepsilon_0\uparrow\uparrow10^{21}}(10)\) using the fast-growing hierarchy.My system of number names (FGS) - Traveling To The Infinity The term was coined by wiki user Denis Maksudov.
== Etymology ==
The 3 parts of the name, "zetto", "tetr" and "ep", mean \(10^{21}\), tetration and \(\varepsilon_0\) respectively, which form \(\varepsilon_0\uparrow\uparrow10^{21}\) when concatenated backwards. So the full name indicates the ordinal index of the FGH.
== Sources ==
Category:Numbers
Category:Numbers by Denis Maksudov
Category:10-based FGH numbers
Category:Epsilon level
Category:-ep