22221020222 has 8 divisors (see below), whose sum is σ = 34780727376. Its totient is φ = 10627444432.

The previous prime is 22221020219. The next prime is 22221020243. The reversal of 22221020222 is 22202012222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22221020222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241532783 + ... + 241532874.

It is an arithmetic number, because the mean of its divisors is an integer number (4347590922).

Almost surely, 2^22221020222 is an apocalyptic number.

22221020222 is a deficient number, since it is larger than the sum of its proper divisors (12559707154).

22221020222 is a wasteful number, since it uses less digits than its factorization.

22221020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483065682.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22221020222 its reverse (22202012222), we get a palindrome (44423032444).

The spelling of 22221020222 in words is "twenty-two billion, two hundred twenty-one million, twenty thousand, two hundred twenty-two".