How to Say "million million" in Spanish
The Spanish word for “million million” is “billón” — B2 level.

Examples
La deuda externa del país alcanzó un billón de dólares.
The country's foreign debt reached one trillion dollars.
Hay aproximadamente un billón de estrellas en esa galaxia.
There are approximately one trillion stars in that galaxy.
Un billón es un número difícil de imaginar.
A trillion is a difficult number to imagine.
The 'De' Connection
When you follow 'billón' with a noun (like people or euros), you must use 'de' in between. For example: 'un billón DE personas'.
Always Masculine
The word 'billón' is always masculine, even if you are counting feminine things like 'estrellas' (stars).
The 'Billion' Trap
Mistake: “Using 'billón' to mean the English 'billion' (1,000,000,000).”
Correction: In Spanish, 'billón' is much bigger! It's 1,000,000,000,000. If you want to say the English 'billion', use 'mil millones'.
Related Translations
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