22431242242 has 16 divisors (see below), whose sum is σ = 33699960000. Its totient is φ = 11197937520.

The previous prime is 22431242237. The next prime is 22431242257. The reversal of 22431242242 is 24224213422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22431242242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6409009 + ... + 6412507.

It is an arithmetic number, because the mean of its divisors is an integer number (2106247500).

Almost surely, 2^22431242242 is an apocalyptic number.

22431242242 is a deficient number, since it is larger than the sum of its proper divisors (11268717758).

22431242242 is a wasteful number, since it uses less digits than its factorization.

22431242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641.

The product of its digits is 12288, while the sum is 28.

Adding to 22431242242 its reverse (24224213422), we get a palindrome (46655455664).

The spelling of 22431242242 in words is "twenty-two billion, four hundred thirty-one million, two hundred forty-two thousand, two hundred forty-two".