22073040021 has 8 divisors (see below), whose sum is σ = 29440290880. Its totient is φ = 14710574592.

The previous prime is 22073039999. The next prime is 22073040037. The reversal of 22073040021 is 12004037022.

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

It is not a de Polignac number, because 22073040021 - 2¹⁰ = 22073038997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22073040021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22073040421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1185580 + ... + 1204053.

It is an arithmetic number, because the mean of its divisors is an integer number (3680036360).

Almost surely, 2^22073040021 is an apocalyptic number.

It is an amenable number.

22073040021 is a deficient number, since it is larger than the sum of its proper divisors (7367250859).

22073040021 is a wasteful number, since it uses less digits than its factorization.

22073040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392715.

The product of its (nonzero) digits is 672, while the sum is 21.

Adding to 22073040021 its reverse (12004037022), we get a palindrome (34077077043).

The spelling of 22073040021 in words is "twenty-two billion, seventy-three million, forty thousand, twenty-one".