218334221983 has 2 divisors, whose sum is σ = 218334221984. Its totient is φ = 218334221982.

The previous prime is 218334221933. The next prime is 218334222023. The reversal of 218334221983 is 389122433812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218334221983 - 2⁹ = 218334221471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218334221923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109167110991 + 109167110992.

It is an arithmetic number, because the mean of its divisors is an integer number (109167110992).

Almost surely, 2^218334221983 is an apocalyptic number.

218334221983 is a deficient number, since it is larger than the sum of its proper divisors (1).

218334221983 is an equidigital number, since it uses as much as digits as its factorization.

218334221983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 46.

The spelling of 218334221983 in words is "two hundred eighteen billion, three hundred thirty-four million, two hundred twenty-one thousand, nine hundred eighty-three".