22000001321 has 8 divisors (see below), whose sum is σ = 22051788000. Its totient is φ = 21948246432.

The previous prime is 22000001293. The next prime is 22000001341. The reversal of 22000001321 is 12310000022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000001321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000001341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1891901 + ... + 1903493.

It is an arithmetic number, because the mean of its divisors is an integer number (2756473500).

Almost surely, 2^22000001321 is an apocalyptic number.

It is an amenable number.

22000001321 is a deficient number, since it is larger than the sum of its proper divisors (51786679).

22000001321 is a wasteful number, since it uses less digits than its factorization.

22000001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15895.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 22000001321 its reverse (12310000022), we get a palindrome (34310001343).

The spelling of 22000001321 in words is "twenty-two billion, one thousand, three hundred twenty-one".