111120021110111 has 32 divisors (see below), whose sum is σ = 125097121699200. Its totient is φ = 97934753562624.

The previous prime is 111120021110101. The next prime is 111120021110149. The reversal of 111120021110111 is 111011120021111.

It is a cyclic number.

It is not a de Polignac number, because 111120021110111 - 2⁴⁶ = 40751276932447 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 (111120021110101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3596916581 + ... + 3596947473.

It is an arithmetic number, because the mean of its divisors is an integer number (3909285053100).

Almost surely, 2^{111120021110111} is an apocalyptic number.

111120021110111 is a deficient number, since it is larger than the sum of its proper divisors (13977100589089).

111120021110111 is a wasteful number, since it uses less digits than its factorization.

111120021110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52355.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 111120021110111 its reverse (111011120021111), we get a palindrome (222131141131222).

The spelling of 111120021110111 in words is "one hundred eleven trillion, one hundred twenty billion, twenty-one million, one hundred ten thousand, one hundred eleven".