322505012000 has 96 divisors (see below), whose sum is σ = 834100001280. Its totient is φ = 122212396800.

The previous prime is 322505011993. The next prime is 322505012009. The reversal of 322505012000 is 210505223.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (322505012009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045744 + ... + 2197743.

It is an arithmetic number, because the mean of its divisors is an integer number (8688541680).

Almost surely, 2^322505012000 is an apocalyptic number.

It is an amenable number.

322505012000 is an abundant number, since it is smaller than the sum of its proper divisors (511594989280).

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

322505012000 is a wasteful number, since it uses less digits than its factorization.

322505012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243531 (or 4243513 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 322505012000 its reverse (210505223), we get a palindrome (322715517223).

The spelling of 322505012000 in words is "three hundred twenty-two billion, five hundred five million, twelve thousand".