211120011120111 has 4 divisors (see below), whose sum is σ = 281493348160152. Its totient is φ = 140746674080072.

The previous prime is 211120011120071. The next prime is 211120011120119. The reversal of 211120011120111 is 111021110021112.

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-211120011120111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120011120119) 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, 35186668520016 + ... + 35186668520021.

It is an arithmetic number, because the mean of its divisors is an integer number (70373337040038).

Almost surely, 2^{211120011120111} is an apocalyptic number.

211120011120111 is a deficient number, since it is larger than the sum of its proper divisors (70373337040041).

211120011120111 is an equidigital number, since it uses as much as digits as its factorization.

211120011120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70373337040040.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211120011120111 its reverse (111021110021112), we get a palindrome (322141121141223).

The spelling of 211120011120111 in words is "two hundred eleven trillion, one hundred twenty billion, eleven million, one hundred twenty thousand, one hundred eleven".