2112220344023 has 4 divisors (see below), whose sum is σ = 2113456285080. Its totient is φ = 2110984402968.

The previous prime is 2112220344011. The next prime is 2112220344041. The reversal of 2112220344023 is 3204430222112.

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-2112220344023 is a prime.

It is a super-2 number, since 2×2112220344023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112220343983 and 2112220344001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112220344623) 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, 617967965 + ... + 617971382.

It is an arithmetic number, because the mean of its divisors is an integer number (528364071270).

Almost surely, 2^{2112220344023} is an apocalyptic number.

2112220344023 is a deficient number, since it is larger than the sum of its proper divisors (1235941057).

2112220344023 is a wasteful number, since it uses less digits than its factorization.

2112220344023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235941056.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2112220344023 its reverse (3204430222112), we get a palindrome (5316650566135).

The spelling of 2112220344023 in words is "two trillion, one hundred twelve billion, two hundred twenty million, three hundred forty-four thousand, twenty-three".