212066365 has 12 divisors (see below), whose sum is σ = 296027676. Its totient is φ = 145416768.

The previous prime is 212066359. The next prime is 212066383. The reversal of 212066365 is 563660212.

212066365 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 2 ways, for example, as 86155524 + 125910841 = 9282^2 + 11221^2 .

It is not a de Polignac number, because 212066365 - 2¹⁷ = 211935293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432544 + ... + 433033.

It is an arithmetic number, because the mean of its divisors is an integer number (24668973).

Almost surely, 2^212066365 is an apocalyptic number.

It is an amenable number.

212066365 is a deficient number, since it is larger than the sum of its proper divisors (83961311).

212066365 is an equidigital number, since it uses as much as digits as its factorization.

212066365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865596 (or 865589 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 212066365 is about 14562.4985836909. The cubic root of 212066365 is about 596.3354088910.

The spelling of 212066365 in words is "two hundred twelve million, sixty-six thousand, three hundred sixty-five".