2111110011001 has 4 divisors (see below), whose sum is σ = 2122773602404. Its totient is φ = 2099446419600.

The previous prime is 2111110010909. The next prime is 2111110011041. The reversal of 2111110011001 is 1001100111112.

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 383686091776 + 1727423919225 = 619424^2 + 1314315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111110011001 - 2¹³ = 2111110002809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111110011041) 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, 5831795430 + ... + 5831795791.

It is an arithmetic number, because the mean of its divisors is an integer number (530693400601).

Almost surely, 2^{2111110011001} is an apocalyptic number.

It is an amenable number.

2111110011001 is a deficient number, since it is larger than the sum of its proper divisors (11663591403).

2111110011001 is a wasteful number, since it uses less digits than its factorization.

2111110011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11663591402.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 2111110011001 its reverse (1001100111112), we get a palindrome (3112210122113).

The spelling of 2111110011001 in words is "two trillion, one hundred eleven billion, one hundred ten million, eleven thousand, one".