212321233312 has 48 divisors (see below), whose sum is σ = 419149684800. Its totient is φ = 105870915072.

The previous prime is 212321233309. The next prime is 212321233337. The reversal of 212321233312 is 213332123212.

212321233312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212321233312² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 19795183 + ... + 19805905.

It is an arithmetic number, because the mean of its divisors is an integer number (8732285100).

Almost surely, 2^212321233312 is an apocalyptic number.

It is an amenable number.

212321233312 is a deficient number, since it is larger than the sum of its proper divisors (206828451488).

212321233312 is a wasteful number, since it uses less digits than its factorization.

212321233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12365 (or 12357 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 212321233312 its reverse (213332123212), we get a palindrome (425653356524).

The spelling of 212321233312 in words is "two hundred twelve billion, three hundred twenty-one million, two hundred thirty-three thousand, three hundred twelve".