223221332231 has 2 divisors, whose sum is σ = 223221332232. Its totient is φ = 223221332230.

The previous prime is 223221332227. The next prime is 223221332233. The reversal of 223221332231 is 132233122322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223221332231 - 2² = 223221332227 is a prime.

It is a super-3 number, since 3×223221332231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 223221332233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223221332231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223221332233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111610666115 + 111610666116.

It is an arithmetic number, because the mean of its divisors is an integer number (111610666116).

Almost surely, 2^223221332231 is an apocalyptic number.

223221332231 is a deficient number, since it is larger than the sum of its proper divisors (1).

223221332231 is an equidigital number, since it uses as much as digits as its factorization.

223221332231 is an evil number, because the sum of its binary digits is even.

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

Adding to 223221332231 its reverse (132233122322), we get a palindrome (355454454553).

The spelling of 223221332231 in words is "two hundred twenty-three billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred thirty-one".