In Rust, integers are a primitive data type that represent whole numbers. They are used to represent numerical values in programs, and can be used in a variety of ways, such as for counting, indexing, and arithmetic operations.

There are several integer types available in Rust, each with a different range of values they can represent. The most common integer types are:

• i8, i16, i32, and i64: signed integers that can represent negative and positive values. The number in their names represents the number of bits they use to store their values.
• u8, u16, u32, and u64: unsigned integers that can represent only positive values. The number in their names represents the number of bits they use to store their values.

In addition to these types, Rust also has two more integer types:

• isize and usize: signed and unsigned integers that can represent the size of a pointer on the current platform. On 32-bit platforms, they are 32 bits long, and on 64-bit platforms, they are 64 bits long.

Integers in Rust can be created using literals, such as 42 or 0xff, or by using expressions and variables. Arithmetic operations such as addition, subtraction, multiplication, and division can be performed on integers, and there are also bitwise operations such as bitwise and (&), bitwise or (|), and bitwise not (!).

It's important to note that when performing arithmetic operations on integers, Rust will check for overflow and panic at runtime if an overflow occurs. This is to prevent unexpected behavior and security vulnerabilities in programs. However, there are also ways to handle overflow situations explicitly, such as using the Wrapping struct to perform arithmetic operations with wrapping behavior instead of panicking.