331221230222012 has 24 divisors (see below), whose sum is σ = 624662064748176. Its totient is φ = 152764209214848.

The previous prime is 331221230222009. The next prime is 331221230222123. The reversal of 331221230222012 is 210222032122133.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2231754473 + ... + 2231902880.

It is an arithmetic number, because the mean of its divisors is an integer number (26027586031174).

Almost surely, 2^{331221230222012} is an apocalyptic number.

It is an amenable number.

331221230222012 is a deficient number, since it is larger than the sum of its proper divisors (293440834526164).

331221230222012 is a wasteful number, since it uses less digits than its factorization.

331221230222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463658797 (or 4463658795 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 331221230222012 its reverse (210222032122133), we get a palindrome (541443262344145).

The spelling of 331221230222012 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, two hundred thirty million, two hundred twenty-two thousand, twelve".