112100001200001 has 24 divisors (see below), whose sum is σ = 164754398540160. Its totient is φ = 73427526327456.

The previous prime is 112100001199997. The next prime is 112100001200027. The reversal of 112100001200001 is 100002100001211.

It is a happy number.

It is not a de Polignac number, because 112100001200001 - 2² = 112100001199997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (112100001200071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55239625 + ... + 57232998.

It is an arithmetic number, because the mean of its divisors is an integer number (6864766605840).

Almost surely, 2^{112100001200001} is an apocalyptic number.

It is an amenable number.

112100001200001 is a deficient number, since it is larger than the sum of its proper divisors (52654397340159).

112100001200001 is a wasteful number, since it uses less digits than its factorization.

112100001200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112474565 (or 112474562 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 112100001200001 its reverse (100002100001211), we get a palindrome (212102101201212).

The spelling of 112100001200001 in words is "one hundred twelve trillion, one hundred billion, one million, two hundred thousand, one".