2213122321123 has 4 divisors (see below), whose sum is σ = 2529282652720. Its totient is φ = 1896961989528.

The previous prime is 2213122321117. The next prime is 2213122321177. The reversal of 2213122321123 is 3211232213122.

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 2213122321123 - 2²¹ = 2213120223971 is a prime.

It is a super-2 number, since 2×2213122321123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213122321523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158080165788 + ... + 158080165801.

It is an arithmetic number, because the mean of its divisors is an integer number (632320663180).

Almost surely, 2^{2213122321123} is an apocalyptic number.

2213122321123 is a deficient number, since it is larger than the sum of its proper divisors (316160331597).

2213122321123 is an equidigital number, since it uses as much as digits as its factorization.

2213122321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316160331596.

The product of its digits is 1728, while the sum is 25.

Adding to 2213122321123 its reverse (3211232213122), we get a palindrome (5424354534245).

The spelling of 2213122321123 in words is "two trillion, two hundred thirteen billion, one hundred twenty-two million, three hundred twenty-one thousand, one hundred twenty-three".