22131424443242 has 8 divisors (see below), whose sum is σ = 33197566671936. Its totient is φ = 11065568885932.

The previous prime is 22131424443221. The next prime is 22131424443301. The reversal of 22131424443242 is 24234442413122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22131424443196 and 22131424443205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71474738 + ... + 71783709.

It is an arithmetic number, because the mean of its divisors is an integer number (4149695833992).

Almost surely, 2^{22131424443242} is an apocalyptic number.

22131424443242 is a deficient number, since it is larger than the sum of its proper divisors (11066142228694).

22131424443242 is a wasteful number, since it uses less digits than its factorization.

22131424443242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143335692.

The product of its digits is 294912, while the sum is 38.

Adding to 22131424443242 its reverse (24234442413122), we get a palindrome (46365866856364).

The spelling of 22131424443242 in words is "twenty-two trillion, one hundred thirty-one billion, four hundred twenty-four million, four hundred forty-three thousand, two hundred forty-two".