321132221242 has 16 divisors (see below), whose sum is σ = 560899406592. Its totient is φ = 135031338000.

The previous prime is 321132221239. The next prime is 321132221279. The reversal of 321132221242 is 242122231123.

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, 216395634 + ... + 216397117.

It is an arithmetic number, because the mean of its divisors is an integer number (35056212912).

Almost surely, 2^321132221242 is an apocalyptic number.

321132221242 is a deficient number, since it is larger than the sum of its proper divisors (239767185350).

321132221242 is a wasteful number, since it uses less digits than its factorization.

321132221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432792813.

The product of its digits is 2304, while the sum is 25.

Adding to 321132221242 its reverse (242122231123), we get a palindrome (563254452365).

The spelling of 321132221242 in words is "three hundred twenty-one billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred forty-two".