323331221012 has 12 divisors (see below), whose sum is σ = 565839390900. Its totient is φ = 161662823616.

The previous prime is 323331221011. The next prime is 323331221027. The reversal of 323331221012 is 210122133323.

It can be written as a sum of positive squares in 2 ways, for example, as 261157793296 + 62173427716 = 511036^2 + 249346^2 .

It is a super-2 number, since 2×323331221012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323331221011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423803 + ... + 908994.

It is an arithmetic number, because the mean of its divisors is an integer number (47153282575).

Almost surely, 2^323331221012 is an apocalyptic number.

It is an amenable number.

323331221012 is a deficient number, since it is larger than the sum of its proper divisors (242508169888).

323331221012 is a wasteful number, since it uses less digits than its factorization.

323331221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393450 (or 1393448 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 323331221012 its reverse (210122133323), we get a palindrome (533453354335).

The spelling of 323331221012 in words is "three hundred twenty-three billion, three hundred thirty-one million, two hundred twenty-one thousand, twelve".