122 billion = 0.122 trillion. 122 billion is 122,000,000,000 in digits, written 1,22,00,00,00,000 in the Indian system.
How to convert billion to trillion
trillion = billion × 0.001
- 1 billion = 0.001 trillion (and 1 trillion = 1,000 billion).
- Multiply the amount by the factor: 122 × 0.001 = 0.122.
- Answer: 122 billion = 0.122 trillion.
Shortcut: dividing by 1,000 gives the same result as multiplying by 0.001.
Indian and international place values
| Indian | Digits (Indian) | International |
|---|---|---|
| 1 lakh | 1,00,000 | 100 thousand |
| 10 lakh | 10,00,000 | 1 million |
| 1 crore | 1,00,00,000 | 10 million |
| 10 crore | 10,00,00,000 | 100 million |
| 100 crore (1 arab) | 1,00,00,00,000 | 1 billion |
| 1 lakh crore | 1,00,00,00,00,000 | 1 trillion |
Billion to Trillion table
| Billion (billion) | Trillion (trillion) |
|---|---|
| 117 billion | 0.117 trillion |
| 118 billion | 0.118 trillion |
| 119 billion | 0.119 trillion |
| 120 billion | 0.12 trillion |
| 121 billion | 0.121 trillion |
| 122 billion | 0.122 trillion |
| 123 billion | 0.123 trillion |
| 124 billion | 0.124 trillion |
| 125 billion | 0.125 trillion |
| 126 billion | 0.126 trillion |
| 127 billion | 0.127 trillion |
| billion | trillion |
|---|---|
| 1 billion | 0.001 trillion |
| 2 billion | 0.002 trillion |
| 5 billion | 0.005 trillion |
| 10 billion | 0.01 trillion |
| 50 billion | 0.05 trillion |
| 100 billion | 0.1 trillion |
Good to know
1 lakh = 100,000 (1,00,000) and 1 crore = 10 million (1,00,00,000).
1 million = 10 lakh, 1 billion = 100 crore, 1 trillion = 1 lakh crore.
The Indian system groups digits in twos after the first three (15,00,00,000); the international system groups in threes (150,000,000).