2002000101121 has 4 divisors (see below), whose sum is σ = 2003179831812. Its totient is φ = 2000820370432.

The previous prime is 2002000101091. The next prime is 2002000101173. The reversal of 2002000101121 is 1211010002002.

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 1961974497025 + 40025604096 = 1400705^2 + 200064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002000101121 - 2¹⁵ = 2002000068353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002000101098 and 2002000101107.

It is not an unprimeable number, because it can be changed into a prime (2002000101181) 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, 589862800 + ... + 589866193.

It is an arithmetic number, because the mean of its divisors is an integer number (500794957953).

Almost surely, 2^{2002000101121} is an apocalyptic number.

It is an amenable number.

2002000101121 is a deficient number, since it is larger than the sum of its proper divisors (1179730691).

2002000101121 is a wasteful number, since it uses less digits than its factorization.

2002000101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179730690.

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

Adding to 2002000101121 its reverse (1211010002002), we get a palindrome (3213010103123).

The spelling of 2002000101121 in words is "two trillion, two billion, one hundred one thousand, one hundred twenty-one".