12223231211128 has 32 divisors (see below), whose sum is σ = 26276859048960. Its totient is φ = 5221683514080.

The previous prime is 12223231211089. The next prime is 12223231211129. The reversal of 12223231211128 is 82111213232221.

It is a super-2 number, since 2×12223231211128² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12223231211128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223231211129) 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, 350902176 + ... + 350937007.

It is an arithmetic number, because the mean of its divisors is an integer number (821151845280).

Almost surely, 2^{12223231211128} is an apocalyptic number.

It is an amenable number.

12223231211128 is an abundant number, since it is smaller than the sum of its proper divisors (14053627837832).

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

12223231211128 is a wasteful number, since it uses less digits than its factorization.

12223231211128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701839507 (or 701839503 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

Adding to 12223231211128 its reverse (82111213232221), we get a palindrome (94334444443349).

The spelling of 12223231211128 in words is "twelve trillion, two hundred twenty-three billion, two hundred thirty-one million, two hundred eleven thousand, one hundred twenty-eight".