221330233223 has 4 divisors (see below), whose sum is σ = 241451163528. Its totient is φ = 201209302920.

The previous prime is 221330233151. The next prime is 221330233247. The reversal of 221330233223 is 322332033122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221330233223 - 2¹⁰ = 221330232199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221330233192 and 221330233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221330233273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10060465136 + ... + 10060465157.

It is an arithmetic number, because the mean of its divisors is an integer number (60362790882).

Almost surely, 2^221330233223 is an apocalyptic number.

221330233223 is a deficient number, since it is larger than the sum of its proper divisors (20120930305).

221330233223 is a wasteful number, since it uses less digits than its factorization.

221330233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120930304.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 221330233223 its reverse (322332033122), we get a palindrome (543662266345).

The spelling of 221330233223 in words is "two hundred twenty-one billion, three hundred thirty million, two hundred thirty-three thousand, two hundred twenty-three".