211120122220111 has 8 divisors (see below), whose sum is σ = 227362385530224. Its totient is φ = 194878180896960.

The previous prime is 211120122220097. The next prime is 211120122220151. The reversal of 211120122220111 is 111022221021112.

It is a happy number.

211120122220111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211120122220111 - 2⁵ = 211120122220079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120122220151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79134085 + ... + 81758446.

It is an arithmetic number, because the mean of its divisors is an integer number (28420298191278).

Almost surely, 2^{211120122220111} is an apocalyptic number.

211120122220111 is a deficient number, since it is larger than the sum of its proper divisors (16242263310113).

211120122220111 is a wasteful number, since it uses less digits than its factorization.

211120122220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160993481.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211120122220111 its reverse (111022221021112), we get a palindrome (322142343241223).

The spelling of 211120122220111 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, one hundred eleven".