12213123222 has 16 divisors (see below), whose sum is σ = 24429420720. Its totient is φ = 4070512032.

The previous prime is 12213123217. The next prime is 12213123269. The reversal of 12213123222 is 22232131221.

It is a super-2 number, since 2×12213123222² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80697 + ... + 175892.

It is an arithmetic number, because the mean of its divisors is an integer number (1526838795).

Almost surely, 2^12213123222 is an apocalyptic number.

12213123222 is an abundant number, since it is smaller than the sum of its proper divisors (12216297498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12213123222 is a wasteful number, since it uses less digits than its factorization.

12213123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264527.

The product of its digits is 576, while the sum is 21.

Adding to 12213123222 its reverse (22232131221), we get a palindrome (34445254443).

The spelling of 12213123222 in words is "twelve billion, two hundred thirteen million, one hundred twenty-three thousand, two hundred twenty-two".