2112230445643 has 4 divisors (see below), whose sum is σ = 2115828794520. Its totient is φ = 2108632096768.

The previous prime is 2112230445587. The next prime is 2112230445673. The reversal of 2112230445643 is 3465440322112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112230445643 - 2³³ = 2103640511051 is a prime.

It is a super-3 number, since 3×2112230445643³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112230445673) 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, 1799173558 + ... + 1799174731.

It is an arithmetic number, because the mean of its divisors is an integer number (528957198630).

Almost surely, 2^{2112230445643} is an apocalyptic number.

2112230445643 is a deficient number, since it is larger than the sum of its proper divisors (3598348877).

2112230445643 is an equidigital number, since it uses as much as digits as its factorization.

2112230445643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598348876.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 2112230445643 its reverse (3465440322112), we get a palindrome (5577670767755).

The spelling of 2112230445643 in words is "two trillion, one hundred twelve billion, two hundred thirty million, four hundred forty-five thousand, six hundred forty-three".