12213223123 has 12 divisors (see below), whose sum is σ = 13450293648. Its totient is φ = 11067352560.

The previous prime is 12213223111. The next prime is 12213223129. The reversal of 12213223123 is 32132231221.

It is not a de Polignac number, because 12213223123 - 2⁹ = 12213222611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12213223094 and 12213223103.

It is not an unprimeable number, because it can be changed into a prime (12213223129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 727168 + ... + 743773.

It is an arithmetic number, because the mean of its divisors is an integer number (1120857804).

Almost surely, 2^12213223123 is an apocalyptic number.

12213223123 is a deficient number, since it is larger than the sum of its proper divisors (1237070525).

12213223123 is a wasteful number, since it uses less digits than its factorization.

12213223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471002 (or 1470983 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 12213223123 its reverse (32132231221), we get a palindrome (44345454344).

The spelling of 12213223123 in words is "twelve billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-three".