20110120001211 has 16 divisors (see below), whose sum is σ = 27184575041024. Its totient is φ = 13221256809024.

The previous prime is 20110120001159. The next prime is 20110120001243. The reversal of 20110120001211 is 11210002101102.

It is a de Polignac number, because none of the positive numbers 2^k-20110120001211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110120001261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4792351 + ... + 7949016.

It is an arithmetic number, because the mean of its divisors is an integer number (1699035940064).

Almost surely, 2^{20110120001211} is an apocalyptic number.

20110120001211 is a deficient number, since it is larger than the sum of its proper divisors (7074455039813).

20110120001211 is a wasteful number, since it uses less digits than its factorization.

20110120001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12748650.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20110120001211 its reverse (11210002101102), we get a palindrome (31320122102313).

The spelling of 20110120001211 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, one thousand, two hundred eleven".