20011010102211 has 4 divisors (see below), whose sum is σ = 26681346802952. Its totient is φ = 13340673401472.

The previous prime is 20011010102141. The next prime is 20011010102249. The reversal of 20011010102211 is 11220101011002.

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

It is not a de Polignac number, because 20011010102211 - 2⁹ = 20011010101699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011010102411) 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, 3335168350366 + ... + 3335168350371.

It is an arithmetic number, because the mean of its divisors is an integer number (6670336700738).

Almost surely, 2^{20011010102211} is an apocalyptic number.

20011010102211 is a deficient number, since it is larger than the sum of its proper divisors (6670336700741).

20011010102211 is an equidigital number, since it uses as much as digits as its factorization.

20011010102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670336700740.

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

Adding to 20011010102211 its reverse (11220101011002), we get a palindrome (31231111113213).

The spelling of 20011010102211 in words is "twenty trillion, eleven billion, ten million, one hundred two thousand, two hundred eleven".