213113303221 has 8 divisors (see below), whose sum is σ = 262293296384. Its totient is φ = 168617118960.

The previous prime is 213113303219. The next prime is 213113303261. The reversal of 213113303221 is 122303311312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213113303221 - 2¹ = 213113303219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213113303192 and 213113303201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113303261) 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, 1170952125 + ... + 1170952306.

It is an arithmetic number, because the mean of its divisors is an integer number (32786662048).

Almost surely, 2^213113303221 is an apocalyptic number.

It is an amenable number.

213113303221 is a deficient number, since it is larger than the sum of its proper divisors (49179993163).

213113303221 is a wasteful number, since it uses less digits than its factorization.

213113303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341904451.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213113303221 its reverse (122303311312), we get a palindrome (335416614533).

The spelling of 213113303221 in words is "two hundred thirteen billion, one hundred thirteen million, three hundred three thousand, two hundred twenty-one".