How many zeros in ten thousand trillion?
Ten-thousand trillion has 16 zeros; this is also known as ten
quadrillion
One trillion = 1,000,000,000,000 (12 zeros)
Ten trillion = 10,000,000,000,000 (13 zeros)
One-hundred trillion = 100,000,000,000,000 (14 zeros)
One-thousand trillion = 1,000,000,000,000,000 (15 zeros) (or one
quadrillion)
Ten-thousand trillion = 10,000,000,000,000,000 (16 zeros) (or
ten quadrillion)
That assumes the short scale (based on powers of a thousand plus
1) where thousand-trillion is not a normal moniker for a number -
it would, as the answerer points out, be called ten
quadrillion.
The long scale (based on powers of a million) does use the
moniker thousand-...illion for numbers (which are alternatively
called ..illiard, eg 1000 million = 1 milliard, 1000 billion = 1
billiard, etc). In this case:
10 thousand trillion = 10000 x (106)3 = 104 x 1018 = 1022 and so
has 22 zeros.