212063013009 has 45 divisors (see below), whose sum is σ = 334460127243. Its totient is φ = 133884800208.

The previous prime is 212063012989. The next prime is 212063013017. The reversal of 212063013009 is 900310360212.

The square root of 212063013009 is 460503.

It is a perfect power (a square), and thus also a powerful number.

212063013009 is a `hidden beast` number, since 2 + 1 + 20 + 630 + 1 + 3 + 0 + 0 + 9 = 666.

212063013009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 87010250625 + 125052762384 = 294975^2 + 353628^2 .

It is not a de Polignac number, because 212063013009 - 2³¹ = 209915529361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (212063013109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 78744667 + ... + 78747359.

Almost surely, 2^212063013009 is an apocalyptic number.

212063013009 is the 460503-rd square number.

212063013009 is the 230252-nd centered octagonal number.

It is an amenable number.

212063013009 is a deficient number, since it is larger than the sum of its proper divisors (122397114234).

212063013009 is an frugal number, since it uses more digits than its factorization.

212063013009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 212063013009 in words is "two hundred twelve billion, sixty-three million, thirteen thousand, nine".