212813650072 has 32 divisors (see below), whose sum is σ = 404795001600. Its totient is φ = 104878540800.

The previous prime is 212813650033. The next prime is 212813650097. The reversal of 212813650072 is 270056318212.

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, 472329 + ... + 805432.

It is an arithmetic number, because the mean of its divisors is an integer number (12649843800).

Almost surely, 2^212813650072 is an apocalyptic number.

It is an amenable number.

212813650072 is a deficient number, since it is larger than the sum of its proper divisors (191981351528).

212813650072 is a wasteful number, since it uses less digits than its factorization.

212813650072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278067 (or 1278063 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 212813650072 its reverse (270056318212), we get a palindrome (482869968284).

The spelling of 212813650072 in words is "two hundred twelve billion, eight hundred thirteen million, six hundred fifty thousand, seventy-two".