111210210011 has 4 divisors (see below), whose sum is σ = 111214756632. Its totient is φ = 111205663392.

The previous prime is 111210209959. The next prime is 111210210043. The reversal of 111210210011 is 110012012111.

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-111210210011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111210209974 and 111210210001.

It is not an unprimeable number, because it can be changed into a prime (111210210211) 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 3 ways as a sum of consecutive naturals, for example, 2236421 + ... + 2285606.

It is an arithmetic number, because the mean of its divisors is an integer number (27803689158).

Almost surely, 2^111210210011 is an apocalyptic number.

111210210011 is a deficient number, since it is larger than the sum of its proper divisors (4546621).

111210210011 is an equidigital number, since it uses as much as digits as its factorization.

111210210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546620.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111210210011 its reverse (110012012111), we get a palindrome (221222222122).

The spelling of 111210210011 in words is "one hundred eleven billion, two hundred ten million, two hundred ten thousand, eleven".