321222223130 has 32 divisors (see below), whose sum is σ = 612623405520. Its totient is φ = 120849408000.

The previous prime is 321222223123. The next prime is 321222223177. The reversal of 321222223130 is 31322222123.

It can be written as a sum of positive squares in 8 ways, for example, as 237803497801 + 83418725329 = 487651^2 + 288823^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321222223096 and 321222223105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381371 + ... + 887630.

Almost surely, 2^321222223130 is an apocalyptic number.

321222223130 is a deficient number, since it is larger than the sum of its proper divisors (291401182390).

321222223130 is a wasteful number, since it uses less digits than its factorization.

321222223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270514.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 321222223130 its reverse (31322222123), we get a palindrome (352544445253).

The spelling of 321222223130 in words is "three hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty".