2004111210121 has 4 divisors (see below), whose sum is σ = 2122000104852. Its totient is φ = 1886222315392.

The previous prime is 2004111210091. The next prime is 2004111210169. The reversal of 2004111210121 is 1210121114002.

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 1779969564025 + 224141646096 = 1334155^2 + 473436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2004111210121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2004111210095 and 2004111210104.

It is not an unprimeable number, because it can be changed into a prime (2004111210181) 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, 58944447340 + ... + 58944447373.

It is an arithmetic number, because the mean of its divisors is an integer number (530500026213).

Almost surely, 2^{2004111210121} is an apocalyptic number.

It is an amenable number.

2004111210121 is a deficient number, since it is larger than the sum of its proper divisors (117888894731).

2004111210121 is a wasteful number, since it uses less digits than its factorization.

2004111210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117888894730.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2004111210121 its reverse (1210121114002), we get a palindrome (3214232324123).

The spelling of 2004111210121 in words is "two trillion, four billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-one".