22422222442 has 8 divisors (see below), whose sum is σ = 33819153732. Its totient is φ = 11149171200.

The previous prime is 22422222439. The next prime is 22422222443. The reversal of 22422222442 is 24422222422.

22422222442 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 21903704001 + 518518441 = 147999^2 + 22771^2 .

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 22422222442.

It is not an unprimeable number, because it can be changed into a prime (22422222443) 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, 30969559 + ... + 30970282.

Almost surely, 2^22422222442 is an apocalyptic number.

22422222442 is a deficient number, since it is larger than the sum of its proper divisors (11396931290).

22422222442 is a wasteful number, since it uses less digits than its factorization.

22422222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61940024.

The product of its digits is 16384, while the sum is 28.

Adding to 22422222442 its reverse (24422222422), we get a palindrome (46844444864).

The spelling of 22422222442 in words is "twenty-two billion, four hundred twenty-two million, two hundred twenty-two thousand, four hundred forty-two".