The prefix which refers to the number 12 is dodeca-, from the Greek word for 12, Romanized as dodeka. For example, a twelve-sided polygon is called a dodecagon, and a twelve-sided polyhedron is called a dodecahedron. There is a branch of musical composition called dodecaphony, which refers to using all twelve notes of a chromatic musical scale within the piece.
Pico means 10-12 = 0.000000000001
The pico- prefix means x 10^-12 The tera- prefix means x 10^12 → 1 Ts / 1 ps = 1 x 10^12 / (1 x 10^-12) = 10^24.
The prefix "con-" means "with."
The prefix for inadequate is in-. The prefix in- means not.
The prefix is ap-. This prefix means to or toward.
The prefix that means inside is "intra-".
The prefix is in-. This prefix means not.
The prefix is in-. This prefix means not.
The prefix is in. The prefix in- means not.
The prefix 'in-' means not.
The prefix that means "former" is "ex-."
The prefix for include is in-. This prefix means not.