22143112442 has 64 divisors (see below), whose sum is σ = 38737543680. Its totient is φ = 9381657600.

The previous prime is 22143112427. The next prime is 22143112451. The reversal of 22143112442 is 24421134122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19966184 + ... + 19967292.

It is an arithmetic number, because the mean of its divisors is an integer number (605274120).

Almost surely, 2^22143112442 is an apocalyptic number.

22143112442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22143112442 is a deficient number, since it is larger than the sum of its proper divisors (16594431238).

22143112442 is a wasteful number, since it uses less digits than its factorization.

22143112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607.

The product of its digits is 3072, while the sum is 26.

Adding to 22143112442 its reverse (24421134122), we get a palindrome (46564246564).

The spelling of 22143112442 in words is "twenty-two billion, one hundred forty-three million, one hundred twelve thousand, four hundred forty-two".