A trillion one. A trillion times a thousand is a quadrillion.
If you include decimals and fractions, then there is no 'next' number.
If you only consider integers (whole numbers) then "one trillion one"
comes after "one trillion".
Quadrillion
quadrillion
Quadrillion comes after trillion. You can review the list, below, and discover all the names of large numbers up to the family of googolplex numbers.
One million billion trillion and one. If you meant what group of numbers, then the answer would be one million billion trillion quadrillion.
Quadrillion comes after trillion. If you add one to a trillion, the number becomes a trillion and one, a trillion and two, etc.
To write a googolplex down, you would have to make a one, followed by ten thousand trillion, trillion, trillion, trillion, trillion, trillion, trillion, trillion, zeroes. There are no named numbers past googol plex, but you could write 'googol plex and one, googol plex and two,' and so on.
If you are talking about what number, it would be 999,999,999,999 If you are talking about what set of numbers it would be the billions
The next set of numbers after trillion are quadrillion and quintillion
After one trillion comes quadrillion, then quintillion, then sextillion, septillion, octillion and so on... The "tri"comes from latin and represents three. Then "quad" represents 4 and so on and so forth...
After 1 trillion comes 1,000,000,000,001 if counting by whole numbers. Otherwise you could refering to what place value is next if you pass through the hundred trillions place. The answer is a quadrillion.
A trillion and 1
Hundred trillion and one comes next.
A trillion and one.