Kotlin is a statically typed language that compiles to Java bytecode and runs on the JVM. It is fully interoperable with Java and provides features like null safety, data classes, extension functions, and coroutines. Kotlin can be used for Android development, where it works well with existing Java code and libraries. It also allows building server, JavaScript, and native applications. Libraries like Anko simplify Android development tasks in Kotlin. Overall, Kotlin is positioned as the future of Android development due to its interoperability and improvements over Java.