2532195
Assumed it reads x^2 + 3xyz + 2y^2 + 3z^2 (<<2y^2>>)
122, 119, 118, 114, 110, 97, 93, 87, 87, 83, 48
Mean = sum/count= 98
Median= middle term= 97
Mode= number given maximum number of times= 87 (appears 2 times)
x^2 + 3xyz + 2y^2 + 3z^2=98^2+3*98*97*87+2*97^2+3*87^2=2532195