(Ella) tiene cuarenta y un ano (tilde, ~, over the final 'n')
('Ella', 'she', can be omitted if self-evident (say, she's already been mentioned) or not needed for emphasis).
You can say "Ella tiene cuarenta y dos años".
In Irish, you would say "Tá mé 42 bliain d'aois." This translates directly to "I am 42 years old." The phrase "42 bliain" means "42 years," and "d'aois" means "old."
(I am) 42 years old = j'ai quarante deux ans
She was 42 years old when she was arrested.
42 Years Old
cuarenta y dos años
You would say "Elle a quarante-deux ans" in French.
42
42
He is 42 years old
42 years old.
42 years old.