213303003221 has 64 divisors (see below), whose sum is σ = 277610582016. Its totient is φ = 159072076800.

The previous prime is 213303003203. The next prime is 213303003227. The reversal of 213303003221 is 122300303312.

It is not a de Polignac number, because 213303003221 - 2⁶ = 213303003157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213303003193 and 213303003202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213303003227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113882141 + ... + 113884013.

It is an arithmetic number, because the mean of its divisors is an integer number (4337665344).

Almost surely, 2^213303003221 is an apocalyptic number.

It is an amenable number.

213303003221 is a deficient number, since it is larger than the sum of its proper divisors (64307578795).

213303003221 is a wasteful number, since it uses less digits than its factorization.

213303003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213303003221 its reverse (122300303312), we get a palindrome (335603306533).

The spelling of 213303003221 in words is "two hundred thirteen billion, three hundred three million, three thousand, two hundred twenty-one".