A googol is 10100. Edward Kasner needed an enormous number and his 9-year old nephew made up the term googolplex. He defined googolplex as
POSITIVE Powers of 10 [Powers of 2]
============
3 = thousand (kilo) [10]
6 = million (mega) [20]
9 = billion (giga) [30]
12 = trillion (tera) [40]
15 = quadrillion (peta) [50]
18 = quintillion (exa) [60]
21 = sextillion (zetta) [70]
24 = septillion (yotta) [80]
27 = octillion
30 = nonillion
33 = decillion
36 = undecillion
39 = duodecillion
42 = tredecillion
45 = quarthordecillion
48 = qumdecillion
51 = sexdecillion
54 = septdecillion
57 = octodecillion
60 = novemdecillion
63 = vigintillion
NEGATIVE Powers of 10 [Powers of 2]
============
-3 = thousandth (milli) [-10]
-6 = millionth (micro) [-20]
-9 = billionth (nano) [-30]
-12 = trillionth (pico) [-40]
-15 = quadrillionth (femto) [-50]
-18 = quintillionth (atto) [-60]
-21 = sextillionth (zepto) [-70]
-24 = septillionth (yocto) [-80]
Jin Ai says "Hi, Priscilla (if you're out there)!!!".