213325201221 has 16 divisors (see below), whose sum is σ = 311761786368. Its totient is φ = 128675257200.

The previous prime is 213325201189. The next prime is 213325201261. The reversal of 213325201221 is 122102523312.

It is not a de Polignac number, because 213325201221 - 2⁵ = 213325201189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213325201191 and 213325201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213325201261) 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, 15311521 + ... + 15325446.

It is an arithmetic number, because the mean of its divisors is an integer number (19485111648).

Almost surely, 2^213325201221 is an apocalyptic number.

It is an amenable number.

213325201221 is a deficient number, since it is larger than the sum of its proper divisors (98436585147).

213325201221 is a wasteful number, since it uses less digits than its factorization.

213325201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30637192.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 213325201221 its reverse (122102523312), we get a palindrome (335427724533).

The spelling of 213325201221 in words is "two hundred thirteen billion, three hundred twenty-five million, two hundred one thousand, two hundred twenty-one".