212095041240917 has 2 divisors, whose sum is σ = 212095041240918. Its totient is φ = 212095041240916.

The previous prime is 212095041240881. The next prime is 212095041240967. The reversal of 212095041240917 is 719042140590212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208098916301956 + 3996124938961 = 14425634^2 + 1999031^2 .

It is a cyclic number.

It is not a de Polignac number, because 212095041240917 - 2⁸ = 212095041240661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212095041240967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106047520620458 + 106047520620459.

It is an arithmetic number, because the mean of its divisors is an integer number (106047520620459).

Almost surely, 2^{212095041240917} is an apocalyptic number.

It is an amenable number.

212095041240917 is a deficient number, since it is larger than the sum of its proper divisors (1).

212095041240917 is an equidigital number, since it uses as much as digits as its factorization.

212095041240917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 212095041240917 in words is "two hundred twelve trillion, ninety-five billion, forty-one million, two hundred forty thousand, nine hundred seventeen".