221331233323 has 16 divisors (see below), whose sum is σ = 232748190720. Its totient is φ = 210068901504.

The previous prime is 221331233311. The next prime is 221331233329. The reversal of 221331233323 is 323332133122.

221331233323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221331233323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221331233291 and 221331233300.

It is not an unprimeable number, because it can be changed into a prime (221331233329) 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, 1848115 + ... + 1964227.

It is an arithmetic number, because the mean of its divisors is an integer number (14546761920).

Almost surely, 2^221331233323 is an apocalyptic number.

221331233323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221331233323 is a deficient number, since it is larger than the sum of its proper divisors (11416957397).

221331233323 is a wasteful number, since it uses less digits than its factorization.

221331233323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116778.

The product of its digits is 11664, while the sum is 28.

Adding to 221331233323 its reverse (323332133122), we get a palindrome (544663366445).

The spelling of 221331233323 in words is "two hundred twenty-one billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred twenty-three".