22143044042 has 48 divisors (see below), whose sum is σ = 39311749512. Its totient is φ = 9324564480.

The previous prime is 22143044039. The next prime is 22143044113. The reversal of 22143044042 is 24044034122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 794619721 + 21348424321 = 28189^2 + 146111^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10478378 + ... + 10480490.

Almost surely, 2^22143044042 is an apocalyptic number.

22143044042 is a deficient number, since it is larger than the sum of its proper divisors (17168705470).

22143044042 is a wasteful number, since it uses less digits than its factorization.

22143044042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943 (or 3936 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22143044042 its reverse (24044034122), we get a palindrome (46187078164).

The spelling of 22143044042 in words is "twenty-two billion, one hundred forty-three million, forty-four thousand, forty-two".