221003311231223 has 16 divisors (see below), whose sum is σ = 221942997276000. Its totient is φ = 220065683673600.

The previous prime is 221003311231103. The next prime is 221003311231259. The reversal of 221003311231223 is 322132113300122.

It is a cyclic number.

It is not a de Polignac number, because 221003311231223 - 2⁴⁴ = 203411125186807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221003311231192 and 221003311231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221003311291223) 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 15 ways as a sum of consecutive naturals, for example, 4168510211 + ... + 4168563227.

It is an arithmetic number, because the mean of its divisors is an integer number (13871437329750).

Almost surely, 2^{221003311231223} is an apocalyptic number.

221003311231223 is a deficient number, since it is larger than the sum of its proper divisors (939686044777).

221003311231223 is a wasteful number, since it uses less digits than its factorization.

221003311231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72098.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 221003311231223 its reverse (322132113300122), we get a palindrome (543135424531345).

The spelling of 221003311231223 in words is "two hundred twenty-one trillion, three billion, three hundred eleven million, two hundred thirty-one thousand, two hundred twenty-three".