212444666444239 has 2 divisors, whose sum is σ = 212444666444240. Its totient is φ = 212444666444238.

The previous prime is 212444666444203. The next prime is 212444666444251. The reversal of 212444666444239 is 932444666444212.

212444666444239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212444666444239 - 2³³ = 212436076509647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212444666444539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106222333222119 + 106222333222120.

It is an arithmetic number, because the mean of its divisors is an integer number (106222333222120).

Almost surely, 2^{212444666444239} is an apocalyptic number.

212444666444239 is a deficient number, since it is larger than the sum of its proper divisors (1).

212444666444239 is an equidigital number, since it uses as much as digits as its factorization.

212444666444239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 191102976, while the sum is 61.

The spelling of 212444666444239 in words is "two hundred twelve trillion, four hundred forty-four billion, six hundred sixty-six million, four hundred forty-four thousand, two hundred thirty-nine".