212392727012 has 18 divisors (see below), whose sum is σ = 374419336662. Its totient is φ = 105415852704.

The previous prime is 212392726961. The next prime is 212392727017. The reversal of 212392727012 is 210727293212.

It can be written as a sum of positive squares in only one way, i.e., 187587736996 + 24804990016 = 433114^2 + 157496^2 .

It is a super-2 number, since 2×212392727012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212392727017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10778633 + ... + 10798319.

It is an arithmetic number, because the mean of its divisors is an integer number (20801074259).

Almost surely, 2^212392727012 is an apocalyptic number.

It is an amenable number.

212392727012 is a deficient number, since it is larger than the sum of its proper divisors (162026609650).

212392727012 is an frugal number, since it uses more digits than its factorization.

212392727012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39515 (or 19826 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 212392727012 in words is "two hundred twelve billion, three hundred ninety-two million, seven hundred twenty-seven thousand, twelve".