22123211122 has 4 divisors (see below), whose sum is σ = 33184816686. Its totient is φ = 11061605560.

The previous prime is 22123211119. The next prime is 22123211129. The reversal of 22123211122 is 22111232122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20808351001 + 1314860121 = 144251^2 + 36261^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22123211122.

It is not an unprimeable number, because it can be changed into a prime (22123211129) by changing a digit.

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 as a sum of consecutive naturals, namely, 5530802779 + ... + 5530802782.

Almost surely, 2^22123211122 is an apocalyptic number.

22123211122 is a deficient number, since it is larger than the sum of its proper divisors (11061605564).

22123211122 is a wasteful number, since it uses less digits than its factorization.

22123211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061605563.

The product of its digits is 192, while the sum is 19.

Adding to 22123211122 its reverse (22111232122), we get a palindrome (44234443244).

The spelling of 22123211122 in words is "twenty-two billion, one hundred twenty-three million, two hundred eleven thousand, one hundred twenty-two".