20012111110211 has 16 divisors (see below), whose sum is σ = 23244731015040. Its totient is φ = 17027004554880.

The previous prime is 20012111110151. The next prime is 20012111110213. The reversal of 20012111110211 is 11201111121002.

It is a cyclic number.

It is not a de Polignac number, because 20012111110211 - 2¹⁰ = 20012111109187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012111110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298895681 + ... + 298962626.

It is an arithmetic number, because the mean of its divisors is an integer number (1452795688440).

Almost surely, 2^{20012111110211} is an apocalyptic number.

20012111110211 is a deficient number, since it is larger than the sum of its proper divisors (3232619904829).

20012111110211 is a wasteful number, since it uses less digits than its factorization.

20012111110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597858514.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20012111110211 its reverse (11201111121002), we get a palindrome (31213222231213).

The spelling of 20012111110211 in words is "twenty trillion, twelve billion, one hundred eleven million, one hundred ten thousand, two hundred eleven".