221323301347 has 2 divisors, whose sum is σ = 221323301348. Its totient is φ = 221323301346.

The previous prime is 221323301281. The next prime is 221323301417. The reversal of 221323301347 is 743103323122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221323301347 - 2²³ = 221314912739 is a prime.

It is not a weakly prime, because it can be changed into another prime (221323101347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110661650673 + 110661650674.

It is an arithmetic number, because the mean of its divisors is an integer number (110661650674).

Almost surely, 2^221323301347 is an apocalyptic number.

221323301347 is a deficient number, since it is larger than the sum of its proper divisors (1).

221323301347 is an equidigital number, since it uses as much as digits as its factorization.

221323301347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 221323301347 its reverse (743103323122), we get a palindrome (964426624469).

The spelling of 221323301347 in words is "two hundred twenty-one billion, three hundred twenty-three million, three hundred one thousand, three hundred forty-seven".