2120001110009 has 4 divisors (see below), whose sum is σ = 2135475570804. Its totient is φ = 2104526649216.

The previous prime is 2120001109997. The next prime is 2120001110021. The reversal of 2120001110009 is 9000111000212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2120001109997) and next prime (2120001110021).

It can be written as a sum of positive squares in 2 ways, for example, as 1469513695225 + 650487414784 = 1212235^2 + 806528^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120001110009 - 2²⁰ = 2120000061433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120001110069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7737230192 + ... + 7737230465.

It is an arithmetic number, because the mean of its divisors is an integer number (533868892701).

Almost surely, 2^{2120001110009} is an apocalyptic number.

It is an amenable number.

2120001110009 is a deficient number, since it is larger than the sum of its proper divisors (15474460795).

2120001110009 is a wasteful number, since it uses less digits than its factorization.

2120001110009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474460794.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 2120001110009 in words is "two trillion, one hundred twenty billion, one million, one hundred ten thousand, nine".