Kiribati is about 398 times smaller than Cote d'Ivoire.

Cote d'Ivoire is approximately 322,463 sq km, while Kiribati is approximately 811 sq km, making Kiribati 0.25% the size of Cote d'Ivoire. Meanwhile, the population of Cote d'Ivoire is ~28.7 million people (28.6 million fewer people live in Kiribati).
Tip: This to-scale comparison of Cote d'Ivoire vs. Kiribati uses the Mercator projection, which distorts the size of regions near the poles.