212081321524 has 12 divisors (see below), whose sum is σ = 371145936448. Its totient is φ = 106039625400.

The previous prime is 212081321497. The next prime is 212081321531. The reversal of 212081321524 is 425123180212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373909 + ... + 750979.

Almost surely, 2^212081321524 is an apocalyptic number.

It is an amenable number.

212081321524 is a deficient number, since it is larger than the sum of its proper divisors (159064614924).

212081321524 is a wasteful number, since it uses less digits than its factorization.

212081321524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517686 (or 517684 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 212081321524 in words is "two hundred twelve billion, eighty-one million, three hundred twenty-one thousand, five hundred twenty-four".