321213021122 has 12 divisors (see below), whose sum is σ = 560483945190. Its totient is φ = 137662723296.

The previous prime is 321213021097. The next prime is 321213021127. The reversal of 321213021122 is 221120312123.

It can be written as a sum of positive squares in only one way, i.e., 277045375201 + 44167645921 = 526351^2 + 210161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321213021094 and 321213021103.

It is not an unprimeable number, because it can be changed into a prime (321213021127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1638841847 + ... + 1638842042.

Almost surely, 2^321213021122 is an apocalyptic number.

321213021122 is a deficient number, since it is larger than the sum of its proper divisors (239270924068).

321213021122 is a wasteful number, since it uses less digits than its factorization.

321213021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277683905 (or 3277683898 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 321213021122 its reverse (221120312123), we get a palindrome (542333333245).

The spelling of 321213021122 in words is "three hundred twenty-one billion, two hundred thirteen million, twenty-one thousand, one hundred twenty-two".