213221332233 has 128 divisors (see below), whose sum is σ = 401548492800. Its totient is φ = 108809070336.

The previous prime is 213221332211. The next prime is 213221332243. The reversal of 213221332233 is 332233122312.

213221332233 is a `hidden beast` number, since 2 + 1 + 322 + 1 + 332 + 2 + 3 + 3 = 666.

213221332233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213221332233 - 2¹⁸ = 213221070089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 213221332197 and 213221332206.

It is not an unprimeable number, because it can be changed into a prime (213221332243) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 16266160 + ... + 16279262.

It is an arithmetic number, because the mean of its divisors is an integer number (3137097600).

Almost surely, 2^213221332233 is an apocalyptic number.

It is an amenable number.

213221332233 is a deficient number, since it is larger than the sum of its proper divisors (188327160567).

213221332233 is a wasteful number, since it uses less digits than its factorization.

213221332233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13348 (or 13342 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 213221332233 its reverse (332233122312), we get a palindrome (545454454545).

The spelling of 213221332233 in words is "two hundred thirteen billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred thirty-three".