2000011121 has 4 divisors (see below), whose sum is σ = 2117658852. Its totient is φ = 1882363392.

The previous prime is 2000011109. The next prime is 2000011147. The reversal of 2000011121 is 1211100002.

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 1213825600 + 786185521 = 34840^2 + 28039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000011121 - 2¹⁸ = 1999748977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000011099 and 2000011108.

It is not an unprimeable number, because it can be changed into a prime (2000010121) 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, 58823840 + ... + 58823873.

It is an arithmetic number, because the mean of its divisors is an integer number (529414713).

Almost surely, 2^2000011121 is an apocalyptic number.

It is an amenable number.

2000011121 is a deficient number, since it is larger than the sum of its proper divisors (117647731).

2000011121 is a wasteful number, since it uses less digits than its factorization.

2000011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117647730.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2000011121 is about 44721.4838863828. The cubic root of 2000011121 is about 1259.9233851542.

Adding to 2000011121 its reverse (1211100002), we get a palindrome (3211111123).

The spelling of 2000011121 in words is "two billion, eleven thousand, one hundred twenty-one".