Trillion means

A Trillion means -
1,000 = one thousand
1,000,000 = one million or Ten Lakhs 10,00,000
1,000,000,000 = one billion or Hundred Crores 100,00,000
1,000,000,000,000 = one trillion or 100000 crore

A million is equal to a thousand thousands (1,000 x 1,000).
A billion is equal to a thousand millions (1,000 x 1,000,000).
A trillion is equal to a thousand billions (1,000 x 1,000,000,000)