12002100210121 has 16 divisors (see below), whose sum is σ = 14523734712960. Its totient is φ = 9682243303680.

The previous prime is 12002100210119. The next prime is 12002100210143. The reversal of 12002100210121 is 12101200120021.

It is a cyclic number.

It is not a de Polignac number, because 12002100210121 - 2¹ = 12002100210119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002100210161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9403350 + ... + 10603168.

It is an arithmetic number, because the mean of its divisors is an integer number (907733419560).

Almost surely, 2^{12002100210121} is an apocalyptic number.

It is an amenable number.

12002100210121 is a deficient number, since it is larger than the sum of its proper divisors (2521634502839).

12002100210121 is a wasteful number, since it uses less digits than its factorization.

12002100210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283904.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12002100210121 its reverse (12101200120021), we get a palindrome (24103300330142).

The spelling of 12002100210121 in words is "twelve trillion, two billion, one hundred million, two hundred ten thousand, one hundred twenty-one".