321224231230012 has 24 divisors (see below), whose sum is σ = 639909140476032. Its totient is φ = 139662709230000.

The previous prime is 321224231229983. The next prime is 321224231230013. The reversal of 321224231230012 is 210032132422123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321224231230013) 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, 158707623114 + ... + 158707625137.

It is an arithmetic number, because the mean of its divisors is an integer number (26662880853168).

Almost surely, 2^{321224231230012} is an apocalyptic number.

It is an amenable number.

321224231230012 is a deficient number, since it is larger than the sum of its proper divisors (318684909246020).

321224231230012 is a wasteful number, since it uses less digits than its factorization.

321224231230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317415248289 (or 317415248287 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 321224231230012 its reverse (210032132422123), we get a palindrome (531256363652135).

The spelling of 321224231230012 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, two hundred thirty-one million, two hundred thirty thousand, twelve".