221003320321301 has 16 divisors (see below), whose sum is σ = 252749435332608. Its totient is φ = 189300773760000.

The previous prime is 221003320321291. The next prime is 221003320321313. The reversal of 221003320321301 is 103123023300122.

It is not a de Polignac number, because 221003320321301 - 2¹⁴ = 221003320304917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221003320321321) 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, 173646011 + ... + 174914103.

It is an arithmetic number, because the mean of its divisors is an integer number (15796839708288).

Almost surely, 2^{221003320321301} is an apocalyptic number.

It is an amenable number.

221003320321301 is a deficient number, since it is larger than the sum of its proper divisors (31746115011307).

221003320321301 is a wasteful number, since it uses less digits than its factorization.

221003320321301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285252.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221003320321301 its reverse (103123023300122), we get a palindrome (324126343621423).

The spelling of 221003320321301 in words is "two hundred twenty-one trillion, three billion, three hundred twenty million, three hundred twenty-one thousand, three hundred one".