1 + "1" => "11" is not the sign of an "untyped" language. I would expect 1 + "1" => 50 (ascii asm), 1 + "1" => 242 (ebcdic asm) or 1 + 1 => 2 (length tagged string, eg, untyped pascal-ish variant), or 1 + "1" => some seemingly random value (C lang) in an "untyped" language.

1 + "1" => "11" is strongly typed, dynamically typed, with a particular type conversion that favours "strings".

But, on reflection, I am probably an pedantic iconoclast.