322221100012 has 24 divisors (see below), whose sum is σ = 672461427456. Its totient is φ = 132090637008.

The previous prime is 322221099971. The next prime is 322221100013. The reversal of 322221100012 is 210001122223.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (322221100013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250171018 + ... + 250172305.

It is an arithmetic number, because the mean of its divisors is an integer number (28019226144).

Almost surely, 2^322221100012 is an apocalyptic number.

It is an amenable number.

322221100012 is an abundant number, since it is smaller than the sum of its proper divisors (350240327444).

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

322221100012 is a wasteful number, since it uses less digits than its factorization.

322221100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500343357 (or 500343355 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 322221100012 its reverse (210001122223), we get a palindrome (532222222235).

The spelling of 322221100012 in words is "three hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, twelve".