A dozen dozen, or the square number 144.
Gross
See also
12, Dozen, DuodecimalExplore with Wolfram|Alpha
References
Wells, D. The Penguin Dictionary of Curious and Interesting Numbers. New York: Penguin Books, p. 86, 1986.Referenced on Wolfram|Alpha
GrossCite this as:
Weisstein, Eric W. "Gross." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Gross.html