212537144086321 has 4 divisors (see below), whose sum is σ = 212600949896944. Its totient is φ = 212473338275700.

The previous prime is 212537144086297. The next prime is 212537144086339. The reversal of 212537144086321 is 123680441735212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212537144086321 - 2¹¹ = 212537144084273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212537144086361) 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, 31902900315 + ... + 31902906976.

It is an arithmetic number, because the mean of its divisors is an integer number (53150237474236).

Almost surely, 2^{212537144086321} is an apocalyptic number.

It is an amenable number.

212537144086321 is a deficient number, since it is larger than the sum of its proper divisors (63805810623).

212537144086321 is an equidigital number, since it uses as much as digits as its factorization.

212537144086321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63805810622.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 212537144086321 in words is "two hundred twelve trillion, five hundred thirty-seven billion, one hundred forty-four million, eighty-six thousand, three hundred twenty-one".