22221320001 has 16 divisors (see below), whose sum is σ = 29994726720. Its totient is φ = 14631174720.

The previous prime is 22221319979. The next prime is 22221320047. The reversal of 22221320001 is 10002312222.

It is a happy number.

It is not a de Polignac number, because 22221320001 - 2¹³ = 22221311809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22221320201) 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 15 ways as a sum of consecutive naturals, for example, 911511 + ... + 935571.

It is an arithmetic number, because the mean of its divisors is an integer number (1874670420).

Almost surely, 2^22221320001 is an apocalyptic number.

It is an amenable number.

22221320001 is a deficient number, since it is larger than the sum of its proper divisors (7773406719).

22221320001 is a wasteful number, since it uses less digits than its factorization.

22221320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27856.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22221320001 its reverse (10002312222), we get a palindrome (32223632223).

The spelling of 22221320001 in words is "twenty-two billion, two hundred twenty-one million, three hundred twenty thousand, one".