212231340030012 has 12 divisors (see below), whose sum is σ = 495206460070056. Its totient is φ = 70743780010000.

The previous prime is 212231340030007. The next prime is 212231340030013. The reversal of 212231340030012 is 210030043132212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212231340030013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8842972501239 + ... + 8842972501262.

It is an arithmetic number, because the mean of its divisors is an integer number (41267205005838).

Almost surely, 2^{212231340030012} is an apocalyptic number.

It is an amenable number.

212231340030012 is an abundant number, since it is smaller than the sum of its proper divisors (282975120040044).

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

212231340030012 is a wasteful number, since it uses less digits than its factorization.

212231340030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17685945002508 (or 17685945002506 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212231340030012 its reverse (210030043132212), we get a palindrome (422261383162224).

The spelling of 212231340030012 in words is "two hundred twelve trillion, two hundred thirty-one billion, three hundred forty million, thirty thousand, twelve".