322404002120 has 32 divisors (see below), whose sum is σ = 726319251000. Its totient is φ = 128799779328.

The previous prime is 322404002051. The next prime is 322404002147. The reversal of 322404002120 is 21200404223.

It can be written as a sum of positive squares in 4 ways, for example, as 310786180324 + 11617821796 = 557482^2 + 107786^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 322404002092 and 322404002101.

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, 5024645 + ... + 5088404.

Almost surely, 2^322404002120 is an apocalyptic number.

It is an amenable number.

322404002120 is an abundant number, since it is smaller than the sum of its proper divisors (403915248880).

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

322404002120 is a wasteful number, since it uses less digits than its factorization.

322404002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113857 (or 10113853 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 322404002120 its reverse (21200404223), we get a palindrome (343604406343).

The spelling of 322404002120 in words is "three hundred twenty-two billion, four hundred four million, two thousand, one hundred twenty".