212140304120444 has 48 divisors (see below), whose sum is σ = 426648172919808. Its totient is φ = 90411278303808.

The previous prime is 212140304120411. The next prime is 212140304120449. The reversal of 212140304120444 is 444021403041212.

It is a self number, because there is not a number n which added to its sum of digits gives 212140304120444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140304120449) 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 15 ways as a sum of consecutive naturals, for example, 24126122 + ... + 31723025.

It is an arithmetic number, because the mean of its divisors is an integer number (8888503602496).

Almost surely, 2^{212140304120444} is an apocalyptic number.

It is an amenable number.

212140304120444 is an abundant number, since it is smaller than the sum of its proper divisors (214507868799364).

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

212140304120444 is a wasteful number, since it uses less digits than its factorization.

212140304120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55849914 (or 55849912 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 212140304120444 its reverse (444021403041212), we get a palindrome (656161707161656).

The spelling of 212140304120444 in words is "two hundred twelve trillion, one hundred forty billion, three hundred four million, one hundred twenty thousand, four hundred forty-four".