22202222122 has 12 divisors (see below), whose sum is σ = 35377590150. Its totient is φ = 10448104256.

The previous prime is 22202222111. The next prime is 22202222129. The reversal of 22202222122 is 22122220222.

It can be written as a sum of positive squares in 3 ways, for example, as 19965972601 + 2236249521 = 141301^2 + 47289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22202222122.

It is not an unprimeable number, because it can be changed into a prime (22202222129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19205497 + ... + 19206652.

Almost surely, 2^22202222122 is an apocalyptic number.

22202222122 is a deficient number, since it is larger than the sum of its proper divisors (13175368028).

22202222122 is a wasteful number, since it uses less digits than its factorization.

22202222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38412185 (or 38412168 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22202222122 its reverse (22122220222), we get a palindrome (44324442344).

The spelling of 22202222122 in words is "twenty-two billion, two hundred two million, two hundred twenty-two thousand, one hundred twenty-two".