piano chord
A♯sus2
A♯1B♯2E♯5
The third replaced by the second. Nothing in it decides between major and minor.
Written the other way round it is B♭sus2 — the same twelve keys on a piano, a different piece of notation.
What is true of it
A♯sus2 is A♯, B♯ and E♯ — 1, 2 and 5 counted from A♯.
These are also the notes of Fsus4/A♯. Which name is right depends on what is underneath and what came before — the notes alone do not decide.