322400531212 has 12 divisors (see below), whose sum is σ = 564386482296. Its totient is φ = 161147250560.

The previous prime is 322400531203. The next prime is 322400531267. The reversal of 322400531212 is 212135004223.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13240078 + ... + 13264405.

It is an arithmetic number, because the mean of its divisors is an integer number (47032206858).

Almost surely, 2^322400531212 is an apocalyptic number.

It is an amenable number.

322400531212 is a deficient number, since it is larger than the sum of its proper divisors (241985951084).

322400531212 is a wasteful number, since it uses less digits than its factorization.

322400531212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26507528 (or 26507526 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 322400531212 its reverse (212135004223), we get a palindrome (534535535435).

The spelling of 322400531212 in words is "three hundred twenty-two billion, four hundred million, five hundred thirty-one thousand, two hundred twelve".