321212132012 has 12 divisors (see below), whose sum is σ = 562425586800. Its totient is φ = 160519107216.

The previous prime is 321212131931. The next prime is 321212132023. The reversal of 321212132012 is 210231212123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21731387 + ... + 21746162.

It is an arithmetic number, because the mean of its divisors is an integer number (46868798900).

Almost surely, 2^321212132012 is an apocalyptic number.

It is an amenable number.

321212132012 is a deficient number, since it is larger than the sum of its proper divisors (241213454788).

321212132012 is a wasteful number, since it uses less digits than its factorization.

321212132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43479400 (or 43479398 counting only the distinct ones).

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

Adding to 321212132012 its reverse (210231212123), we get a palindrome (531443344135).

The spelling of 321212132012 in words is "three hundred twenty-one billion, two hundred twelve million, one hundred thirty-two thousand, twelve".