12002100112021 has 2 divisors, whose sum is σ = 12002100112022. Its totient is φ = 12002100112020.

The previous prime is 12002100111941. The next prime is 12002100112043. The reversal of 12002100112021 is 12021100120021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9129885264900 + 2872214847121 = 3021570^2 + 1694761^2 .

It is an emirp because it is prime and its reverse (12021100120021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12002100112021 - 2¹⁵ = 12002100079253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12002100111992 and 12002100112010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002100112421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001050056010 + 6001050056011.

It is an arithmetic number, because the mean of its divisors is an integer number (6001050056011).

Almost surely, 2^{12002100112021} is an apocalyptic number.

It is an amenable number.

12002100112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002100112021 is an equidigital number, since it uses as much as digits as its factorization.

12002100112021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12002100112021 its reverse (12021100120021), we get a palindrome (24023200232042).

The spelling of 12002100112021 in words is "twelve trillion, two billion, one hundred million, one hundred twelve thousand, twenty-one".