211122112120211 has 16 divisors (see below), whose sum is σ = 212113633115520. Its totient is φ = 210132988369920.

The previous prime is 211122112120189. The next prime is 211122112120217. The reversal of 211122112120211 is 112021211221112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211122112120211 - 2²⁶ = 211122045011347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122112120217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2566449821 + ... + 2566532081.

It is an arithmetic number, because the mean of its divisors is an integer number (13257102069720).

Almost surely, 2^{211122112120211} is an apocalyptic number.

211122112120211 is a deficient number, since it is larger than the sum of its proper divisors (991520995309).

211122112120211 is a wasteful number, since it uses less digits than its factorization.

211122112120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96686.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211122112120211 its reverse (112021211221112), we get a palindrome (323143323341323).

The spelling of 211122112120211 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, two hundred eleven".