2002121110121 has 16 divisors (see below), whose sum is σ = 2214267995520. Its totient is φ = 1795001742720.

The previous prime is 2002121110097. The next prime is 2002121110139. The reversal of 2002121110121 is 1210111212002.

It is a cyclic number.

It is not a de Polignac number, because 2002121110121 - 2¹⁰ = 2002121109097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2002121110096 and 2002121110105.

It is not an unprimeable number, because it can be changed into a prime (2002121110421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8482916 + ... + 8715738.

It is an arithmetic number, because the mean of its divisors is an integer number (138391749720).

Almost surely, 2^{2002121110121} is an apocalyptic number.

It is an amenable number.

2002121110121 is a deficient number, since it is larger than the sum of its proper divisors (212146885399).

2002121110121 is a wasteful number, since it uses less digits than its factorization.

2002121110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243616.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2002121110121 its reverse (1210111212002), we get a palindrome (3212232322123).

The spelling of 2002121110121 in words is "two trillion, two billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty-one".