32121312212 has 24 divisors (see below), whose sum is σ = 61393635072. Its totient is φ = 14583660800.

The previous prime is 32121312211. The next prime is 32121312233. The reversal of 32121312212 is 21221312123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121312211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 384989 + ... + 460932.

It is an arithmetic number, because the mean of its divisors is an integer number (2558068128).

Almost surely, 2^32121312212 is an apocalyptic number.

It is an amenable number.

32121312212 is a deficient number, since it is larger than the sum of its proper divisors (29272322860).

32121312212 is a wasteful number, since it uses less digits than its factorization.

32121312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846799 (or 846797 counting only the distinct ones).

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

Adding to 32121312212 its reverse (21221312123), we get a palindrome (53342624335).

The spelling of 32121312212 in words is "thirty-two billion, one hundred twenty-one million, three hundred twelve thousand, two hundred twelve".