22021322222 has 16 divisors (see below), whose sum is σ = 33102358800. Its totient is φ = 10987228800.

The previous prime is 22021322209. The next prime is 22021322273. The reversal of 22021322222 is 22222312022.

It is a junction number, because it is equal to n+sod(n) for n = 22021322194 and 22021322203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1985729 + ... + 1996787.

It is an arithmetic number, because the mean of its divisors is an integer number (2068897425).

Almost surely, 2^22021322222 is an apocalyptic number.

22021322222 is a deficient number, since it is larger than the sum of its proper divisors (11081036578).

22021322222 is a wasteful number, since it uses less digits than its factorization.

22021322222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13091.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22021322222 its reverse (22222312022), we get a palindrome (44243634244).

The spelling of 22021322222 in words is "twenty-two billion, twenty-one million, three hundred twenty-two thousand, two hundred twenty-two".