12121021112159 has 2 divisors, whose sum is σ = 12121021112160. Its totient is φ = 12121021112158.

The previous prime is 12121021112119. The next prime is 12121021112287. The reversal of 12121021112159 is 95121112012121.

It is a happy number.

12121021112159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12121021112159 - 2²⁰ = 12121020063583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121021112119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060510556079 + 6060510556080.

It is an arithmetic number, because the mean of its divisors is an integer number (6060510556080).

Almost surely, 2^{12121021112159} is an apocalyptic number.

12121021112159 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121021112159 is an equidigital number, since it uses as much as digits as its factorization.

12121021112159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 29.

The spelling of 12121021112159 in words is "twelve trillion, one hundred twenty-one billion, twenty-one million, one hundred twelve thousand, one hundred fifty-nine".