221024340079 has 2 divisors, whose sum is σ = 221024340080. Its totient is φ = 221024340078.

The previous prime is 221024340071. The next prime is 221024340143. The reversal of 221024340079 is 970043420122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221024340079 - 2³ = 221024340071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221024340071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110512170039 + 110512170040.

It is an arithmetic number, because the mean of its divisors is an integer number (110512170040).

Almost surely, 2^221024340079 is an apocalyptic number.

221024340079 is a deficient number, since it is larger than the sum of its proper divisors (1).

221024340079 is an equidigital number, since it uses as much as digits as its factorization.

221024340079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 221024340079 in words is "two hundred twenty-one billion, twenty-four million, three hundred forty thousand, seventy-nine".