321133110212 has 24 divisors (see below), whose sum is σ = 564832974552. Its totient is φ = 159753484800.

The previous prime is 321133110191. The next prime is 321133110239. The reversal of 321133110212 is 212011331123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 241369794436 + 79763315776 = 491294^2 + 282424^2 .

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, 901262 + ... + 1206042.

It is an arithmetic number, because the mean of its divisors is an integer number (23534707273).

Almost surely, 2^321133110212 is an apocalyptic number.

It is an amenable number.

321133110212 is a deficient number, since it is larger than the sum of its proper divisors (243699864340).

321133110212 is a wasteful number, since it uses less digits than its factorization.

321133110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306119 (or 306117 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321133110212 its reverse (212011331123), we get a palindrome (533144441335).

The spelling of 321133110212 in words is "three hundred twenty-one billion, one hundred thirty-three million, one hundred ten thousand, two hundred twelve".