221734717944323 has 2 divisors, whose sum is σ = 221734717944324. Its totient is φ = 221734717944322.

The previous prime is 221734717944301. The next prime is 221734717944371. The reversal of 221734717944323 is 323449717437122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221734717944323 - 2²² = 221734713750019 is a prime.

It is not a weakly prime, because it can be changed into another prime (221734717944373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110867358972161 + 110867358972162.

It is an arithmetic number, because the mean of its divisors is an integer number (110867358972162).

Almost surely, 2^{221734717944323} is an apocalyptic number.

221734717944323 is a deficient number, since it is larger than the sum of its proper divisors (1).

221734717944323 is an equidigital number, since it uses as much as digits as its factorization.

221734717944323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 59.

The spelling of 221734717944323 in words is "two hundred twenty-one trillion, seven hundred thirty-four billion, seven hundred seventeen million, nine hundred forty-four thousand, three hundred twenty-three".