213133000221 has 16 divisors (see below), whose sum is σ = 315918244800. Its totient is φ = 142014123504.

The previous prime is 213133000211. The next prime is 213133000237. The reversal of 213133000221 is 122000331312.

It is not a de Polignac number, because 213133000221 - 2⁵ = 213133000189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213133000194 and 213133000203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213133000211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2018206 + ... + 2121183.

It is an arithmetic number, because the mean of its divisors is an integer number (19744890300).

Almost surely, 2^213133000221 is an apocalyptic number.

It is an amenable number.

213133000221 is a deficient number, since it is larger than the sum of its proper divisors (102785244579).

213133000221 is a wasteful number, since it uses less digits than its factorization.

213133000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141305 (or 4141299 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213133000221 its reverse (122000331312), we get a palindrome (335133331533).

The spelling of 213133000221 in words is "two hundred thirteen billion, one hundred thirty-three million, two hundred twenty-one", and thus it is an aban number.