213331133220 has 96 divisors (see below), whose sum is σ = 629543470080. Its totient is φ = 53827493760.

The previous prime is 213331133177. The next prime is 213331133261. The reversal of 213331133220 is 22331133312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 809169 + ... + 1039911.

It is an arithmetic number, because the mean of its divisors is an integer number (6557744480).

Almost surely, 2^213331133220 is an apocalyptic number.

213331133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213331133220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314771735040).

213331133220 is an abundant number, since it is smaller than the sum of its proper divisors (416212336860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213331133220 is a wasteful number, since it uses less digits than its factorization.

213331133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231585 (or 231583 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 213331133220 its reverse (22331133312), we get a palindrome (235662266532).

The spelling of 213331133220 in words is "two hundred thirteen billion, three hundred thirty-one million, one hundred thirty-three thousand, two hundred twenty".