2112223123 has 8 divisors (see below), whose sum is σ = 2237892192. Its totient is φ = 1986711936.

The previous prime is 2112223109. The next prime is 2112223159. The reversal of 2112223123 is 3213222112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112223123 - 2¹⁷ = 2112092051 is a prime.

It is a super-2 number, since 2×2112223123² = 8922973042671746258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112223123.

It is not an unprimeable number, because it can be changed into a prime (2112223723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11340 + ... + 65977.

It is an arithmetic number, because the mean of its divisors is an integer number (279736524).

Almost surely, 2^2112223123 is an apocalyptic number.

2112223123 is a deficient number, since it is larger than the sum of its proper divisors (125669069).

2112223123 is a wasteful number, since it uses less digits than its factorization.

2112223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78941.

The product of its digits is 288, while the sum is 19.

The square root of 2112223123 is about 45958.9286537447. The cubic root of 2112223123 is about 1283.0589118898.

Adding to 2112223123 its reverse (3213222112), we get a palindrome (5325445235).

The spelling of 2112223123 in words is "two billion, one hundred twelve million, two hundred twenty-three thousand, one hundred twenty-three".