221320003332001 has 16 divisors (see below), whose sum is σ = 256140096307200. Its totient is φ = 187300670523408.

The previous prime is 221320003331989. The next prime is 221320003332017. The reversal of 221320003332001 is 100233300023122.

It is a cyclic number.

It is not a de Polignac number, because 221320003332001 - 2⁴⁵ = 186135631243169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221320003338001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132954036 + ... + 134608378.

It is an arithmetic number, because the mean of its divisors is an integer number (16008756019200).

Almost surely, 2^{221320003332001} is an apocalyptic number.

It is an amenable number.

221320003332001 is a deficient number, since it is larger than the sum of its proper divisors (34820092975199).

221320003332001 is a wasteful number, since it uses less digits than its factorization.

221320003332001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896348.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221320003332001 its reverse (100233300023122), we get a palindrome (321553303355123).

The spelling of 221320003332001 in words is "two hundred twenty-one trillion, three hundred twenty billion, three million, three hundred thirty-two thousand, one".