212333013205 has 8 divisors (see below), whose sum is σ = 254802691800. Its totient is φ = 169864359936.

The previous prime is 212333013203. The next prime is 212333013241. The reversal of 212333013205 is 502310333212.

It can be written as a sum of positive squares in 4 ways, for example, as 51402865284 + 160930147921 = 226722^2 + 401161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212333013205 - 2¹ = 212333013203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212333013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212333013203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315061 + ... + 723829.

It is an arithmetic number, because the mean of its divisors is an integer number (31850336475).

Almost surely, 2^212333013205 is an apocalyptic number.

It is an amenable number.

212333013205 is a deficient number, since it is larger than the sum of its proper divisors (42469678595).

212333013205 is a wasteful number, since it uses less digits than its factorization.

212333013205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512663.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 212333013205 its reverse (502310333212), we get a palindrome (714643346417).

The spelling of 212333013205 in words is "two hundred twelve billion, three hundred thirty-three million, thirteen thousand, two hundred five".