221002320001 has 16 divisors (see below), whose sum is σ = 225789742080. Its totient is φ = 216273784320.

The previous prime is 221002319953. The next prime is 221002320031. The reversal of 221002320001 is 100023200122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221002320001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002320031) 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 15 ways as a sum of consecutive naturals, for example, 5595360 + ... + 5634718.

It is an arithmetic number, because the mean of its divisors is an integer number (14111858880).

Almost surely, 2^221002320001 is an apocalyptic number.

It is an amenable number.

221002320001 is a deficient number, since it is larger than the sum of its proper divisors (4787422079).

221002320001 is a wasteful number, since it uses less digits than its factorization.

221002320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40104.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 221002320001 its reverse (100023200122), we get a palindrome (321025520123).

The spelling of 221002320001 in words is "two hundred twenty-one billion, two million, three hundred twenty thousand, one".