Here's the breakdown:

* Pico (p) is a prefix in the metric system that represents 10⁻¹².

* Meter (m) is the base unit of length in the metric system.

Therefore, 1 picometer (pm) is equal to 10⁻¹² meters. To find out how many picometers are in a meter, you would divide 1 meter by 1 picometer:

1 m / 1 pm = 1 m / 10⁻¹² m = 10¹² = 1,000,000,000,000 pm