221343242231359 has 2 divisors, whose sum is σ = 221343242231360. Its totient is φ = 221343242231358.

The previous prime is 221343242231291. The next prime is 221343242231387. The reversal of 221343242231359 is 953132242343122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221343242231359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221343242231159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110671621115679 + 110671621115680.

It is an arithmetic number, because the mean of its divisors is an integer number (110671621115680).

Almost surely, 2^{221343242231359} is an apocalyptic number.

221343242231359 is a deficient number, since it is larger than the sum of its proper divisors (1).

221343242231359 is an equidigital number, since it uses as much as digits as its factorization.

221343242231359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 46.

The spelling of 221343242231359 in words is "two hundred twenty-one trillion, three hundred forty-three billion, two hundred forty-two million, two hundred thirty-one thousand, three hundred fifty-nine".