331221102212012 has 12 divisors (see below), whose sum is σ = 581166313910280. Its totient is φ = 165173583951936.

The previous prime is 331221102212009. The next prime is 331221102212023. The reversal of 331221102212012 is 210212201122133.

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, 109241786813 + ... + 109241789844.

It is an arithmetic number, because the mean of its divisors is an integer number (48430526159190).

Almost surely, 2^{331221102212012} is an apocalyptic number.

It is an amenable number.

331221102212012 is a deficient number, since it is larger than the sum of its proper divisors (249945211698268).

331221102212012 is a wasteful number, since it uses less digits than its factorization.

331221102212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218483577040 (or 218483577038 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 331221102212012 its reverse (210212201122133), we get a palindrome (541433303334145).

The spelling of 331221102212012 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, one hundred two million, two hundred twelve thousand, twelve".