212013021233 has 8 divisors (see below), whose sum is σ = 228327628200. Its totient is φ = 195699259008.

The previous prime is 212013021229. The next prime is 212013021257. The reversal of 212013021233 is 332120310212.

It can be written as a sum of positive squares in 4 ways, for example, as 44063047744 + 167949973489 = 209912^2 + 409817^2 .

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 212013021233 - 2² = 212013021229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212013021203) 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, 369173 + ... + 748541.

It is an arithmetic number, because the mean of its divisors is an integer number (28540953525).

Almost surely, 2^212013021233 is an apocalyptic number.

It is an amenable number.

212013021233 is a deficient number, since it is larger than the sum of its proper divisors (16314606967).

212013021233 is a wasteful number, since it uses less digits than its factorization.

212013021233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422371.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212013021233 its reverse (332120310212), we get a palindrome (544133331445).

The spelling of 212013021233 in words is "two hundred twelve billion, thirteen million, twenty-one thousand, two hundred thirty-three".