2102120012071 has 2 divisors, whose sum is σ = 2102120012072. Its totient is φ = 2102120012070.

The previous prime is 2102120012059. The next prime is 2102120012081. The reversal of 2102120012071 is 1702100212012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102120012071 - 2²⁹ = 2101583141159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102120012081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051060006035 + 1051060006036.

It is an arithmetic number, because the mean of its divisors is an integer number (1051060006036).

Almost surely, 2^{2102120012071} is an apocalyptic number.

2102120012071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102120012071 is an equidigital number, since it uses as much as digits as its factorization.

2102120012071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 2102120012071 its reverse (1702100212012), we get a palindrome (3804220224083).

The spelling of 2102120012071 in words is "two trillion, one hundred two billion, one hundred twenty million, twelve thousand, seventy-one".