221042432339 has 2 divisors, whose sum is σ = 221042432340. Its totient is φ = 221042432338.

The previous prime is 221042432309. The next prime is 221042432383. The reversal of 221042432339 is 933234240122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221042432339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221042432299 and 221042432308.

It is not a weakly prime, because it can be changed into another prime (221042432309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110521216169 + 110521216170.

It is an arithmetic number, because the mean of its divisors is an integer number (110521216170).

Almost surely, 2^221042432339 is an apocalyptic number.

221042432339 is a deficient number, since it is larger than the sum of its proper divisors (1).

221042432339 is an equidigital number, since it uses as much as digits as its factorization.

221042432339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 221042432339 in words is "two hundred twenty-one billion, forty-two million, four hundred thirty-two thousand, three hundred thirty-nine".