321221332132 has 6 divisors (see below), whose sum is σ = 562137331238. Its totient is φ = 160610666064.

The previous prime is 321221332127. The next prime is 321221332151. The reversal of 321221332132 is 231233122123.

It can be written as a sum of positive squares in only one way, i.e., 310300246116 + 10921086016 = 557046^2 + 104504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321221332097 and 321221332106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40152666513 + ... + 40152666520.

Almost surely, 2^321221332132 is an apocalyptic number.

It is an amenable number.

321221332132 is a deficient number, since it is larger than the sum of its proper divisors (240915999106).

321221332132 is a wasteful number, since it uses less digits than its factorization.

321221332132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80305333037 (or 80305333035 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 321221332132 its reverse (231233122123), we get a palindrome (552454454255).

The spelling of 321221332132 in words is "three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty-two".