221123313347 has 2 divisors, whose sum is σ = 221123313348. Its totient is φ = 221123313346.

The previous prime is 221123313319. The next prime is 221123313349. The reversal of 221123313347 is 743313321122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221123313347 - 2⁶ = 221123313283 is a prime.

Together with 221123313349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (221123313349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561656673 + 110561656674.

It is an arithmetic number, because the mean of its divisors is an integer number (110561656674).

Almost surely, 2^221123313347 is an apocalyptic number.

221123313347 is a deficient number, since it is larger than the sum of its proper divisors (1).

221123313347 is an equidigital number, since it uses as much as digits as its factorization.

221123313347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

Adding to 221123313347 its reverse (743313321122), we get a palindrome (964436634469).

The spelling of 221123313347 in words is "two hundred twenty-one billion, one hundred twenty-three million, three hundred thirteen thousand, three hundred forty-seven".