2001102000121 has 12 divisors (see below), whose sum is σ = 2328088721232. Its totient is φ = 1715026777128.

The previous prime is 2001101999957. The next prime is 2001102000167. The reversal of 2001102000121 is 1210002011002.

It is not a de Polignac number, because 2001102000121 - 2⁹ = 2001101999609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001102000098 and 2001102000107.

It is not an unprimeable number, because it can be changed into a prime (2001102600121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2004795 + ... + 2832208.

It is an arithmetic number, because the mean of its divisors is an integer number (194007393436).

Almost surely, 2^{2001102000121} is an apocalyptic number.

It is an amenable number.

2001102000121 is a deficient number, since it is larger than the sum of its proper divisors (326986721111).

2001102000121 is an equidigital number, since it uses as much as digits as its factorization.

2001102000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4845460 (or 4845453 counting only the distinct ones).

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

Adding to 2001102000121 its reverse (1210002011002), we get a palindrome (3211104011123).

The spelling of 2001102000121 in words is "two trillion, one billion, one hundred two million, one hundred twenty-one", and thus it is an aban number.