212

Number
$212$ (two hundred and twelve) is:


 * $2^2 \times 53$


 * The $8$th integer after $0$, $1$, $2$, $4$, $8$, $121$, $151$ which is palindromic in both decimal and ternary:
 * $212_{10} = 12 \, 121_3$


 * The $11$th palindromic integer after $0$, $1$, $2$, $3$, $11$, $22$, $101$, $111$, $121$, $202$ whose square is also palindromic integer
 * $212^2 = 44 \, 944$


 * The $23$rd Zuckerman number after $1$, $2$, $3$, $4$, $5$, $6$, $7$, $8$, $9$, $11$, $12$, $15$, $24$, $36$, $111$, $112$, $115$, $128$, $132$, $135$, $144$, $175$:
 * $212 = 53 \times 4 = 53 \times \paren {2 \times 1 \times 2}$