213210221032 has 8 divisors (see below), whose sum is σ = 399769164450. Its totient is φ = 106605110512.

The previous prime is 213210221011. The next prime is 213210221033. The reversal of 213210221032 is 230122012312.

It can be written as a sum of positive squares in only one way, i.e., 203514667876 + 9695553156 = 451126^2 + 98466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (213210221033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13325638807 + ... + 13325638822.

Almost surely, 2^213210221032 is an apocalyptic number.

It is an amenable number.

213210221032 is a deficient number, since it is larger than the sum of its proper divisors (186558943418).

213210221032 is a wasteful number, since it uses less digits than its factorization.

213210221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26651277635 (or 26651277631 counting only the distinct ones).

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

Adding to 213210221032 its reverse (230122012312), we get a palindrome (443332233344).

The spelling of 213210221032 in words is "two hundred thirteen billion, two hundred ten million, two hundred twenty-one thousand, thirty-two".