212553305412 has 48 divisors (see below), whose sum is σ = 566953884672. Its totient is φ = 60713972640.

The previous prime is 212553305389. The next prime is 212553305413. The reversal of 212553305412 is 214503355212.

It is not an unprimeable number, because it can be changed into a prime (212553305413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8353 + ... + 652055.

It is an arithmetic number, because the mean of its divisors is an integer number (11811539264).

Almost surely, 2^212553305412 is an apocalyptic number.

It is an amenable number.

212553305412 is an abundant number, since it is smaller than the sum of its proper divisors (354400579260).

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

212553305412 is a wasteful number, since it uses less digits than its factorization.

212553305412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647648 (or 647646 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 212553305412 in words is "two hundred twelve billion, five hundred fifty-three million, three hundred five thousand, four hundred twelve".