211121020222211 has 16 divisors (see below), whose sum is σ = 243883108915200. Its totient is φ = 180622457393280.

The previous prime is 211121020222201. The next prime is 211121020222241. The reversal of 211121020222211 is 112222020121112.

It is a cyclic number.

It is not a de Polignac number, because 211121020222211 - 2¹⁰ = 211121020221187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121020222201) 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, 47389811 + ... + 51653036.

It is an arithmetic number, because the mean of its divisors is an integer number (15242694307200).

Almost surely, 2^{211121020222211} is an apocalyptic number.

211121020222211 is a deficient number, since it is larger than the sum of its proper divisors (32762088692989).

211121020222211 is a wasteful number, since it uses less digits than its factorization.

211121020222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99054274.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211121020222211 its reverse (112222020121112), we get a palindrome (323343040343323).

The spelling of 211121020222211 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, two hundred eleven".