2110002000121 has 4 divisors (see below), whose sum is σ = 2234119764852. Its totient is φ = 1985884235392.

The previous prime is 2110002000077. The next prime is 2110002000137. The reversal of 2110002000121 is 1210002000112.

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 990003110121 + 1119998890000 = 994989^2 + 1058300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110002000121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110002000098 and 2110002000107.

It is not an unprimeable number, because it can be changed into a prime (2110002000521) 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, 62058882340 + ... + 62058882373.

It is an arithmetic number, because the mean of its divisors is an integer number (558529941213).

Almost surely, 2^{2110002000121} is an apocalyptic number.

It is an amenable number.

2110002000121 is a deficient number, since it is larger than the sum of its proper divisors (124117764731).

2110002000121 is a wasteful number, since it uses less digits than its factorization.

2110002000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124117764730.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2110002000121 its reverse (1210002000112), we get a palindrome (3320004000233).

Subtracting from 2110002000121 its reverse (1210002000112), we obtain a palindrome (900000000009).

The spelling of 2110002000121 in words is "two trillion, one hundred ten billion, two million, one hundred twenty-one", and thus it is an aban number.