112112111210111 has 4 divisors (see below), whose sum is σ = 118706941281312. Its totient is φ = 105517281138912.

The previous prime is 112112111209993. The next prime is 112112111210119. The reversal of 112112111210111 is 111012111211211.

It is a happy number.

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-112112111210111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6594830071183 = 112112111210111 / (1 + 1 + 2 + 1 + 1 + 2 + 1 + 1 + 1 + 2 + 1 + 0 + 1 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112112111210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112111210119) 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, 3297415035575 + ... + 3297415035608.

It is an arithmetic number, because the mean of its divisors is an integer number (29676735320328).

Almost surely, 2^{112112111210111} is an apocalyptic number.

112112111210111 is a deficient number, since it is larger than the sum of its proper divisors (6594830071201).

112112111210111 is an equidigital number, since it uses as much as digits as its factorization.

112112111210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6594830071200.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 112112111210111 its reverse (111012111211211), we get a palindrome (223124222421322).

The spelling of 112112111210111 in words is "one hundred twelve trillion, one hundred twelve billion, one hundred eleven million, two hundred ten thousand, one hundred eleven".