2102121010159 has 2 divisors, whose sum is σ = 2102121010160. Its totient is φ = 2102121010158.

The previous prime is 2102121010091. The next prime is 2102121010181. The reversal of 2102121010159 is 9510101212012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102121010159 - 2⁹ = 2102121009647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102121010189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051060505079 + 1051060505080.

It is an arithmetic number, because the mean of its divisors is an integer number (1051060505080).

Almost surely, 2^{2102121010159} is an apocalyptic number.

2102121010159 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102121010159 is an equidigital number, since it uses as much as digits as its factorization.

2102121010159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 25.

The spelling of 2102121010159 in words is "two trillion, one hundred two billion, one hundred twenty-one million, ten thousand, one hundred fifty-nine".