221201230230323 has 8 divisors (see below), whose sum is σ = 257960618344800. Its totient is φ = 189601054482840.

The previous prime is 221201230230319. The next prime is 221201230230349. The reversal of 221201230230323 is 323032032102122.

It is not a de Polignac number, because 221201230230323 - 2² = 221201230230319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221201230230292 and 221201230230301.

It is not an unprimeable number, because it can be changed into a prime (221201230230313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322450772588 + ... + 322450773273.

It is an arithmetic number, because the mean of its divisors is an integer number (32245077293100).

Almost surely, 2^{221201230230323} is an apocalyptic number.

221201230230323 is a deficient number, since it is larger than the sum of its proper divisors (36759388114477).

221201230230323 is an frugal number, since it uses more digits than its factorization.

221201230230323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644901545882 (or 644901545868 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 221201230230323 its reverse (323032032102122), we get a palindrome (544233262332445).

The spelling of 221201230230323 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred thirty million, two hundred thirty thousand, three hundred twenty-three".