213221322321232 has 40 divisors (see below), whose sum is σ = 418990674255552. Its totient is φ = 105095096870400.

The previous prime is 213221322321151. The next prime is 213221322321239. The reversal of 213221322321232 is 232123223122312.

213221322321232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213221322321194 and 213221322321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213221322321239) 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, 3973369 + ... + 21029272.

Almost surely, 2^{213221322321232} is an apocalyptic number.

It is an amenable number.

213221322321232 is a deficient number, since it is larger than the sum of its proper divisors (205769351934320).

213221322321232 is a wasteful number, since it uses less digits than its factorization.

213221322321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25010227 (or 25010221 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

Adding to 213221322321232 its reverse (232123223122312), we get a palindrome (445344545443544).

The spelling of 213221322321232 in words is "two hundred thirteen trillion, two hundred twenty-one billion, three hundred twenty-two million, three hundred twenty-one thousand, two hundred thirty-two".