22220863 has 12 divisors (see below), whose sum is σ = 25932720. Its totient is φ = 18984672.

The previous prime is 22220851. The next prime is 22220879. The reversal of 22220863 is 36802222.

It is not a de Polignac number, because 22220863 - 2¹⁷ = 22089791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20995 + ... + 22027.

It is an arithmetic number, because the mean of its divisors is an integer number (2161060).

Almost surely, 2^22220863 is an apocalyptic number.

22220863 is a deficient number, since it is larger than the sum of its proper divisors (3711857).

22220863 is a wasteful number, since it uses less digits than its factorization.

22220863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1479 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22220863 is about 4713.9010384182. The cubic root of 22220863 is about 281.1384895883.

The spelling of 22220863 in words is "twenty-two million, two hundred twenty thousand, eight hundred sixty-three".