20001120220211 has 32 divisors (see below), whose sum is σ = 21715980249600. Its totient is φ = 18312032240640.

The previous prime is 20001120220199. The next prime is 20001120220297. The reversal of 20001120220211 is 11202202110002.

It is a cyclic number.

It is not a de Polignac number, because 20001120220211 - 2¹⁰ = 20001120219187 is a prime.

It is a super-2 number, since 2×20001120220211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20001120520211) 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 31 ways as a sum of consecutive naturals, for example, 2656540295 + ... + 2656547823.

It is an arithmetic number, because the mean of its divisors is an integer number (678624382800).

Almost surely, 2^{20001120220211} is an apocalyptic number.

20001120220211 is a deficient number, since it is larger than the sum of its proper divisors (1714860029389).

20001120220211 is a wasteful number, since it uses less digits than its factorization.

20001120220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10559.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20001120220211 its reverse (11202202110002), we get a palindrome (31203322330213).

The spelling of 20001120220211 in words is "twenty trillion, one billion, one hundred twenty million, two hundred twenty thousand, two hundred eleven".