22021046842 has 8 divisors (see below), whose sum is σ = 33032973600. Its totient is φ = 11010055644.

The previous prime is 22021046833. The next prime is 22021046869. The reversal of 22021046842 is 24864012022.

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

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 3 ways as a sum of consecutive naturals, for example, 171742 + ... + 271177.

It is an arithmetic number, because the mean of its divisors is an integer number (4129121700).

Almost surely, 2^22021046842 is an apocalyptic number.

22021046842 is a deficient number, since it is larger than the sum of its proper divisors (11011926758).

22021046842 is a wasteful number, since it uses less digits than its factorization.

22021046842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467780.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 22021046842 its reverse (24864012022), we get a palindrome (46885058864).

The spelling of 22021046842 in words is "twenty-two billion, twenty-one million, forty-six thousand, eight hundred forty-two".