22220056 has 16 divisors (see below), whose sum is σ = 43007040. Its totient is φ = 10751520.

The previous prime is 22220041. The next prime is 22220057. The reversal of 22220056 is 65002222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44551 + ... + 45046.

It is an arithmetic number, because the mean of its divisors is an integer number (2687940).

Almost surely, 2^22220056 is an apocalyptic number.

It is an amenable number.

22220056 is a deficient number, since it is larger than the sum of its proper divisors (20786984).

22220056 is a wasteful number, since it uses less digits than its factorization.

22220056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89634 (or 89630 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22220056 is about 4713.8154397473. The cubic root of 22220056 is about 281.1350861575.

Adding to 22220056 its reverse (65002222), we get a palindrome (87222278).

The spelling of 22220056 in words is "twenty-two million, two hundred twenty thousand, fifty-six".