211020010222211 has 4 divisors (see below), whose sum is σ = 211054530105672. Its totient is φ = 210985490338752.

The previous prime is 211020010222193. The next prime is 211020010222223. The reversal of 211020010222211 is 112222010020112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211020010222211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211020010222211.

It is not an unprimeable number, because it can be changed into a prime (211020010222111) 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, 17259932561 + ... + 17259944786.

It is an arithmetic number, because the mean of its divisors is an integer number (52763632526418).

Almost surely, 2^{211020010222211} is an apocalyptic number.

211020010222211 is a deficient number, since it is larger than the sum of its proper divisors (34519883461).

211020010222211 is an equidigital number, since it uses as much as digits as its factorization.

211020010222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34519883460.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211020010222211 its reverse (112222010020112), we get a palindrome (323242020242323).

The spelling of 211020010222211 in words is "two hundred eleven trillion, twenty billion, ten million, two hundred twenty-two thousand, two hundred eleven".