20001122200011 has 4 divisors (see below), whose sum is σ = 26668162933352. Its totient is φ = 13334081466672.

The previous prime is 20001122199997. The next prime is 20001122200061. The reversal of 20001122200011 is 11000222110002.

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

It is not a de Polignac number, because 20001122200011 - 2¹⁰ = 20001122198987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20001122200011.

It is not an unprimeable number, because it can be changed into a prime (20001122200061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333520366666 + ... + 3333520366671.

It is an arithmetic number, because the mean of its divisors is an integer number (6667040733338).

Almost surely, 2^{20001122200011} is an apocalyptic number.

20001122200011 is a deficient number, since it is larger than the sum of its proper divisors (6667040733341).

20001122200011 is an equidigital number, since it uses as much as digits as its factorization.

20001122200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667040733340.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001122200011 its reverse (11000222110002), we get a palindrome (31001344310013).

Subtracting from 20001122200011 its reverse (11000222110002), we obtain a palindrome (9000900090009).

The spelling of 20001122200011 in words is "twenty trillion, one billion, one hundred twenty-two million, two hundred thousand, eleven".