212127663445 has 16 divisors (see below), whose sum is σ = 256061596032. Its totient is φ = 168696815680.

The previous prime is 212127663439. The next prime is 212127663457. The reversal of 212127663445 is 544366721212.

212127663445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212127663445 - 2³ = 212127663437 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8144814 + ... + 8170816.

It is an arithmetic number, because the mean of its divisors is an integer number (16003849752).

Almost surely, 2^212127663445 is an apocalyptic number.

It is an amenable number.

212127663445 is a deficient number, since it is larger than the sum of its proper divisors (43933932587).

212127663445 is a wasteful number, since it uses less digits than its factorization.

212127663445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35612.

The product of its digits is 483840, while the sum is 43.

The spelling of 212127663445 in words is "two hundred twelve billion, one hundred twenty-seven million, six hundred sixty-three thousand, four hundred forty-five".