C3E1N1T1I1L1L1I1O1N1S1
13 points
CENTILLIONS is validvalid
CENTILLION, the 303rd or 600th power of ten in the short or long scale respectively [n]
CENTILLION, in UK and Germany, the hundredth power of a million, i.e. 1 followed by 600 zeros; in North America and France, the hundred-and-first power of a thousand, i.e. 1 followed by 303 zeros [n]