22021022222 has 8 divisors (see below), whose sum is σ = 33340239576. Its totient is φ = 10907609032.

The previous prime is 22021022209. The next prime is 22021022237. The reversal of 22021022222 is 22222012022.

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 22021022222.

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, 51450773 + ... + 51451200.

It is an arithmetic number, because the mean of its divisors is an integer number (4167529947).

Almost surely, 2^22021022222 is an apocalyptic number.

22021022222 is a deficient number, since it is larger than the sum of its proper divisors (11319217354).

22021022222 is a wasteful number, since it uses less digits than its factorization.

22021022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102902082.

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

Adding to 22021022222 its reverse (22222012022), we get a palindrome (44243034244).

The spelling of 22021022222 in words is "twenty-two billion, twenty-one million, twenty-two thousand, two hundred twenty-two".