20110021100211 has 64 divisors (see below), whose sum is σ = 32360844615680. Its totient is φ = 10851527750400.

The previous prime is 20110021100189. The next prime is 20110021100261. The reversal of 20110021100211 is 11200112001102.

It is not a de Polignac number, because 20110021100211 - 2⁵ = 20110021100179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110021100261) 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 63 ways as a sum of consecutive naturals, for example, 154125546 + ... + 154255968.

It is an arithmetic number, because the mean of its divisors is an integer number (505638197120).

Almost surely, 2^{20110021100211} is an apocalyptic number.

20110021100211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20110021100211 is a deficient number, since it is larger than the sum of its proper divisors (12250823515469).

20110021100211 is a wasteful number, since it uses less digits than its factorization.

20110021100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131696.

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

Adding to 20110021100211 its reverse (11200112001102), we get a palindrome (31310133101313).

The spelling of 20110021100211 in words is "twenty trillion, one hundred ten billion, twenty-one million, one hundred thousand, two hundred eleven".