12223122442 has 16 divisors (see below), whose sum is σ = 18528376680. Its totient is φ = 6047151552.

The previous prime is 12223122397. The next prime is 12223122467. The reversal of 12223122442 is 24422132221.

It can be written as a sum of positive squares in 4 ways, for example, as 11795914881 + 427207561 = 108609^2 + 20669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121548 + ... + 198040.

Almost surely, 2^12223122442 is an apocalyptic number.

12223122442 is a deficient number, since it is larger than the sum of its proper divisors (6305254238).

12223122442 is a wasteful number, since it uses less digits than its factorization.

12223122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77337.

The product of its digits is 3072, while the sum is 25.

Adding to 12223122442 its reverse (24422132221), we get a palindrome (36645254663).

The spelling of 12223122442 in words is "twelve billion, two hundred twenty-three million, one hundred twenty-two thousand, four hundred forty-two".