111210112111 has 16 divisors (see below), whose sum is σ = 130988704000. Its totient is φ = 92436277248.

The previous prime is 111210112109. The next prime is 111210112121. The reversal of 111210112111 is 111211012111.

It is not a de Polignac number, because 111210112111 - 2¹ = 111210112109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111210112091 and 111210112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210112121) 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, 1287186 + ... + 1370863.

It is an arithmetic number, because the mean of its divisors is an integer number (8186794000).

Almost surely, 2^111210112111 is an apocalyptic number.

111210112111 is a deficient number, since it is larger than the sum of its proper divisors (19778591889).

111210112111 is a wasteful number, since it uses less digits than its factorization.

111210112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658238.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111210112111 its reverse (111211012111), we get a palindrome (222421124222).

The spelling of 111210112111 in words is "one hundred eleven billion, two hundred ten million, one hundred twelve thousand, one hundred eleven".