211100120100211 has 4 divisors (see below), whose sum is σ = 211145645254752. Its totient is φ = 211054594945672.

The previous prime is 211100120100161. The next prime is 211100120100217. The reversal of 211100120100211 is 112001021001112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 211100120100211 - 2¹⁵ = 211100120067443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211100120100191 and 211100120100200.

It is not an unprimeable number, because it can be changed into a prime (211100120100217) 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, 22762570315 + ... + 22762579588.

It is an arithmetic number, because the mean of its divisors is an integer number (52786411313688).

Almost surely, 2^{211100120100211} is an apocalyptic number.

211100120100211 is a deficient number, since it is larger than the sum of its proper divisors (45525154541).

211100120100211 is an equidigital number, since it uses as much as digits as its factorization.

211100120100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45525154540.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211100120100211 its reverse (112001021001112), we get a palindrome (323101141101323).

Subtracting from 211100120100211 its reverse (112001021001112), we obtain a palindrome (99099099099099).

The spelling of 211100120100211 in words is "two hundred eleven trillion, one hundred billion, one hundred twenty million, one hundred thousand, two hundred eleven".