212210320312 has 32 divisors (see below), whose sum is σ = 398315181600. Its totient is φ = 105993014400.

The previous prime is 212210320307. The next prime is 212210320339. The reversal of 212210320312 is 213023012212.

It is a self number, because there is not a number n which added to its sum of digits gives 212210320312.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44588989 + ... + 44593747.

It is an arithmetic number, because the mean of its divisors is an integer number (12447349425).

Almost surely, 2^212210320312 is an apocalyptic number.

It is an amenable number.

212210320312 is a deficient number, since it is larger than the sum of its proper divisors (186104861288).

212210320312 is a wasteful number, since it uses less digits than its factorization.

212210320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487 (or 9483 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212210320312 its reverse (213023012212), we get a palindrome (425233332524).

The spelling of 212210320312 in words is "two hundred twelve billion, two hundred ten million, three hundred twenty thousand, three hundred twelve".