212065256223 has 40 divisors (see below), whose sum is σ = 319675316928. Its totient is φ = 140094406656.

The previous prime is 212065256203. The next prime is 212065256233. The reversal of 212065256223 is 322652560212.

212065256223 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 6 + 5 + 25 + 622 + 3 = 666.

It is not a de Polignac number, because 212065256223 - 2⁵ = 212065256191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212065256203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3991290 + ... + 4044072.

Almost surely, 2^212065256223 is an apocalyptic number.

212065256223 is a deficient number, since it is larger than the sum of its proper divisors (107610060705).

212065256223 is a wasteful number, since it uses less digits than its factorization.

212065256223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53245 (or 53236 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 212065256223 in words is "two hundred twelve billion, sixty-five million, two hundred fifty-six thousand, two hundred twenty-three".