112111102222001 has 4 divisors (see below), whose sum is σ = 112111440228900. Its totient is φ = 112110764215104.

The previous prime is 112111102221973. The next prime is 112111102222037. The reversal of 112111102222001 is 100222201111211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15600912140401 + 96510190081600 = 3949799^2 + 9823960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111102222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112111102222061) 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, 168505436 + ... + 169169453.

It is an arithmetic number, because the mean of its divisors is an integer number (28027860057225).

Almost surely, 2^{112111102222001} is an apocalyptic number.

It is an amenable number.

112111102222001 is a deficient number, since it is larger than the sum of its proper divisors (338006899).

112111102222001 is an equidigital number, since it uses as much as digits as its factorization.

112111102222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338006898.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112111102222001 its reverse (100222201111211), we get a palindrome (212333303333212).

The spelling of 112111102222001 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred two million, two hundred twenty-two thousand, one".