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v3.22.1

Cash and cash equivalents (Tables) | 12 Months Ended
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Dec. 31, 2021
Cash and cash equivalents |
Summary of cash and cash equivalents | ​
​ | ​ | ​ | ​ | ​
​ |  | 12/31/2021 |  | 12/31/2020
Cash and cash equivalents in national currency |  | 444,212 |  | 474,395
Cash and cash equivalents in foreign currency |  | 20,643 |  | 27,595
Reverse repurchase agreements* (90 days) |  | 35,591 |  | 1,652,697
Total of cash and cash equivalents |  | 500,446 |  | 2,154,687
* | Refers to operations whose maturity, on the investment date, was equal to or less than 90 days and present an insignificant risk of change in fair value.
Summary of reverse repurchase agreements | ​
​ | ​ | ​ | ​ | ​
Reverse repurchase agreements | ​ | 12/31/2021 |  | 12/31/2020
Underlying security: |  |  |  |
- Financial Treasury Letters (LFT) |  | — |  | 412,492
- National Treasury Letters (LTN) |  | 30,448 |  | 1,240,205
- National Treasury Bond (NTN) |  | 1,048 |  | —
- Bank deposit certificates |  | 4,095 |  | —
Total Reverse repurchase agreements |  | 35,591 |  | 1,652,697

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