(n) :
(US; modern British & Australian, short scale) A millionmillion: 1 followed by twelve zeros, 1012; (dated British & Australian, long scale) A millionmillionmillion: 1 followed by eighteen zeros, 1018
(n) :
(US; modern British & Australian, short scale) A millionmillion: 1 followed by twelve zeros, 1012; (dated British & Australian, long scale) A millionmillionmillion: 1 followed by eighteen zeros, 1018