212321123130000 has 100 divisors (see below), whose sum is σ = 685400895043568. Its totient is φ = 56618966160000.

The previous prime is 212321123129959. The next prime is 212321123130019. The reversal of 212321123130000 is 31321123212.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3538655386 + ... + 3538715385.

Almost surely, 2^{212321123130000} is an apocalyptic number.

212321123130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212321123130000 is an abundant number, since it is smaller than the sum of its proper divisors (473079771913568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212321123130000 is an equidigital number, since it uses as much as digits as its factorization.

212321123130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077370802 (or 7077370781 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212321123130000 its reverse (31321123212), we get a palindrome (212352444253212).

The spelling of 212321123130000 in words is "two hundred twelve trillion, three hundred twenty-one billion, one hundred twenty-three million, one hundred thirty thousand".