321132224444 has 12 divisors (see below), whose sum is σ = 586415366544. Its totient is φ = 153584976864.

The previous prime is 321132224411. The next prime is 321132224459. The reversal of 321132224444 is 444422231123.

It is a happy number.

It is a super-2 number, since 2×321132224444² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321132224444.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1745283737 + ... + 1745283920.

It is an arithmetic number, because the mean of its divisors is an integer number (48867947212).

Almost surely, 2^321132224444 is an apocalyptic number.

It is an amenable number.

321132224444 is a deficient number, since it is larger than the sum of its proper divisors (265283142100).

321132224444 is a wasteful number, since it uses less digits than its factorization.

321132224444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490567684 (or 3490567682 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 321132224444 its reverse (444422231123), we get a palindrome (765554455567).

The spelling of 321132224444 in words is "three hundred twenty-one billion, one hundred thirty-two million, two hundred twenty-four thousand, four hundred forty-four".