321131320021222 has 8 divisors (see below), whose sum is σ = 481697066235672. Its totient is φ = 160565631276000.

The previous prime is 321131320021153. The next prime is 321131320021277. The reversal of 321131320021222 is 222120023131123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4622097 + ... + 25760947.

It is an arithmetic number, because the mean of its divisors is an integer number (60212133279459).

Almost surely, 2^{321131320021222} is an apocalyptic number.

321131320021222 is a deficient number, since it is larger than the sum of its proper divisors (160565746214450).

321131320021222 is a wasteful number, since it uses less digits than its factorization.

321131320021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28734614.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321131320021222 its reverse (222120023131123), we get a palindrome (543251343152345).

The spelling of 321131320021222 in words is "three hundred twenty-one trillion, one hundred thirty-one billion, three hundred twenty million, twenty-one thousand, two hundred twenty-two".