21010110121159 has 2 divisors, whose sum is σ = 21010110121160. Its totient is φ = 21010110121158.

The previous prime is 21010110121057. The next prime is 21010110121201. The reversal of 21010110121159 is 95112101101012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010110121159 - 2¹⁵ = 21010110088391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010110121859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505055060579 + 10505055060580.

It is an arithmetic number, because the mean of its divisors is an integer number (10505055060580).

Almost surely, 2^{21010110121159} is an apocalyptic number.

21010110121159 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010110121159 is an equidigital number, since it uses as much as digits as its factorization.

21010110121159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 25.

The spelling of 21010110121159 in words is "twenty-one trillion, ten billion, one hundred ten million, one hundred twenty-one thousand, one hundred fifty-nine".