321223534212 has 24 divisors (see below), whose sum is σ = 856596091456. Its totient is φ = 91778152608.

The previous prime is 321223534193. The next prime is 321223534223. The reversal of 321223534212 is 212435322123.

It is a self number, because there is not a number n which added to its sum of digits gives 321223534212.

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, 1912044763 + ... + 1912044930.

Almost surely, 2^321223534212 is an apocalyptic number.

It is an amenable number.

321223534212 is an abundant number, since it is smaller than the sum of its proper divisors (535372557244).

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

321223534212 is a wasteful number, since it uses less digits than its factorization.

321223534212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824089707 (or 3824089705 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

Adding to 321223534212 its reverse (212435322123), we get a palindrome (533658856335).

The spelling of 321223534212 in words is "three hundred twenty-one billion, two hundred twenty-three million, five hundred thirty-four thousand, two hundred twelve".