321322121222 has 4 divisors (see below), whose sum is σ = 481983181836. Its totient is φ = 160661060610.

The previous prime is 321322121203. The next prime is 321322121231. The reversal of 321322121222 is 222121223123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222121223123 = 33637 ⋅6603479.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80330530304 + ... + 80330530307.

It is an arithmetic number, because the mean of its divisors is an integer number (120495795459).

Almost surely, 2^321322121222 is an apocalyptic number.

321322121222 is a deficient number, since it is larger than the sum of its proper divisors (160661060614).

321322121222 is a wasteful number, since it uses less digits than its factorization.

321322121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160661060613.

The product of its digits is 1152, while the sum is 23.

Adding to 321322121222 its reverse (222121223123), we get a palindrome (543443344345).

The spelling of 321322121222 in words is "three hundred twenty-one billion, three hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".