12101002000121 has 4 divisors (see below), whose sum is σ = 12101024694372. Its totient is φ = 12100979305872.

The previous prime is 12101002000103. The next prime is 12101002000133. The reversal of 12101002000121 is 12100020010121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1663934884096 + 10437067116025 = 1289936^2 + 3230645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101002000121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12101002000141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10527566 + ... + 11620311.

It is an arithmetic number, because the mean of its divisors is an integer number (3025256173593).

Almost surely, 2^{12101002000121} is an apocalyptic number.

It is an amenable number.

12101002000121 is a deficient number, since it is larger than the sum of its proper divisors (22694251).

12101002000121 is an equidigital number, since it uses as much as digits as its factorization.

12101002000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22694250.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12101002000121 its reverse (12100020010121), we get a palindrome (24201022010242).

The spelling of 12101002000121 in words is "twelve trillion, one hundred one billion, two million, one hundred twenty-one", and thus it is an aban number.