22222444422 has 64 divisors (see below), whose sum is σ = 48178771200. Its totient is φ = 6809443200.

The previous prime is 22222444417. The next prime is 22222444429. The reversal of 22222444422 is 22444422222.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22222444422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222444429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1591672 + ... + 1605572.

It is an arithmetic number, because the mean of its divisors is an integer number (752793300).

Almost surely, 2^22222444422 is an apocalyptic number.

22222444422 is an abundant number, since it is smaller than the sum of its proper divisors (25956326778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222444422 is a wasteful number, since it uses less digits than its factorization.

22222444422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14341.

The product of its digits is 32768, while the sum is 30.

Adding to 22222444422 its reverse (22444422222), we get a palindrome (44666866644).

The spelling of 22222444422 in words is "twenty-two billion, two hundred twenty-two million, four hundred forty-four thousand, four hundred twenty-two".