213230221012 has 12 divisors (see below), whose sum is σ = 373191106036. Its totient is φ = 106604190720.

The previous prime is 213230220991. The next prime is 213230221031. The reversal of 213230221012 is 210122032312.

213230221012 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 65492999056 + 147737221956 = 255916^2 + 384366^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2685933 + ... + 2764180.

Almost surely, 2^213230221012 is an apocalyptic number.

It is an amenable number.

213230221012 is a deficient number, since it is larger than the sum of its proper divisors (159960885024).

213230221012 is a wasteful number, since it uses less digits than its factorization.

213230221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459898 (or 5459896 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213230221012 its reverse (210122032312), we get a palindrome (423352253324).

The spelling of 213230221012 in words is "two hundred thirteen billion, two hundred thirty million, two hundred twenty-one thousand, twelve".