112111110021 has 16 divisors (see below), whose sum is σ = 150844369536. Its totient is φ = 74059646976.

The previous prime is 112111110019. The next prime is 112111110053. The reversal of 112111110021 is 120011111211.

It is not a de Polignac number, because 112111110021 - 2¹ = 112111110019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112111109979 and 112111110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111110011) 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 15 ways as a sum of consecutive naturals, for example, 1294741 + ... + 1378613.

It is an arithmetic number, because the mean of its divisors is an integer number (9427773096).

Almost surely, 2^112111110021 is an apocalyptic number.

It is an amenable number.

112111110021 is a deficient number, since it is larger than the sum of its proper divisors (38733259515).

112111110021 is a wasteful number, since it uses less digits than its factorization.

112111110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87932.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 112111110021 its reverse (120011111211), we get a palindrome (232122221232).

The spelling of 112111110021 in words is "one hundred twelve billion, one hundred eleven million, one hundred ten thousand, twenty-one".