2012120710217 has 2 divisors, whose sum is σ = 2012120710218. Its totient is φ = 2012120710216.

The previous prime is 2012120710211. The next prime is 2012120710231. The reversal of 2012120710217 is 7120170212102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1541145962041 + 470974748176 = 1241429^2 + 686276^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012120710217 - 2¹⁴ = 2012120693833 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012120710211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006060355108 + 1006060355109.

It is an arithmetic number, because the mean of its divisors is an integer number (1006060355109).

Almost surely, 2^{2012120710217} is an apocalyptic number.

It is an amenable number.

2012120710217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012120710217 is an equidigital number, since it uses as much as digits as its factorization.

2012120710217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

Adding to 2012120710217 its reverse (7120170212102), we get a palindrome (9132290922319).

The spelling of 2012120710217 in words is "two trillion, twelve billion, one hundred twenty million, seven hundred ten thousand, two hundred seventeen".