12223131330421 has 24 divisors (see below), whose sum is σ = 14063714566272. Its totient is φ = 10595279719200.

The previous prime is 12223131330401. The next prime is 12223131330433. The reversal of 12223131330421 is 12403313132221.

It is a de Polignac number, because none of the positive numbers 2^k-12223131330421 is a prime.

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 12223131330421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223131330401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6045345 + ... + 7809766.

It is an arithmetic number, because the mean of its divisors is an integer number (585988106928).

Almost surely, 2^{12223131330421} is an apocalyptic number.

12223131330421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12223131330421 is a deficient number, since it is larger than the sum of its proper divisors (1840583235851).

12223131330421 is a wasteful number, since it uses less digits than its factorization.

12223131330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855473 (or 13855462 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 12223131330421 its reverse (12403313132221), we get a palindrome (24626444462642).

The spelling of 12223131330421 in words is "twelve trillion, two hundred twenty-three billion, one hundred thirty-one million, three hundred thirty thousand, four hundred twenty-one".