2112111021223 has 8 divisors (see below), whose sum is σ = 2413876113440. Its totient is φ = 1810354665600.

The previous prime is 2112111021217. The next prime is 2112111021227. The reversal of 2112111021223 is 3221201112112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112111021223 - 2²⁹ = 2111574150311 is a prime.

It is a super-2 number, since 2×2112111021223² (a number of 25 digits) 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 2112111021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112111021227) 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, 1657638 + ... + 2640451.

It is an arithmetic number, because the mean of its divisors is an integer number (301734514180).

Almost surely, 2^{2112111021223} is an apocalyptic number.

2112111021223 is a deficient number, since it is larger than the sum of its proper divisors (301765092217).

2112111021223 is an equidigital number, since it uses as much as digits as its factorization.

2112111021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368297.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2112111021223 its reverse (3221201112112), we get a palindrome (5333312133335).

The spelling of 2112111021223 in words is "two trillion, one hundred twelve billion, one hundred eleven million, twenty-one thousand, two hundred twenty-three".