2112120148717 has 2 divisors, whose sum is σ = 2112120148718. Its totient is φ = 2112120148716.

The previous prime is 2112120148661. The next prime is 2112120148763. The reversal of 2112120148717 is 7178410212112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1159883766441 + 952236382276 = 1076979^2 + 975826^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112120148717 - 2¹⁵ = 2112120115949 is a prime.

It is a super-2 number, since 2×2112120148717² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112120548717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056060074358 + 1056060074359.

It is an arithmetic number, because the mean of its divisors is an integer number (1056060074359).

Almost surely, 2^{2112120148717} is an apocalyptic number.

It is an amenable number.

2112120148717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112120148717 is an equidigital number, since it uses as much as digits as its factorization.

2112120148717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 37.

The spelling of 2112120148717 in words is "two trillion, one hundred twelve billion, one hundred twenty million, one hundred forty-eight thousand, seven hundred seventeen".