213313233220 has 24 divisors (see below), whose sum is σ = 447974601984. Its totient is φ = 85322090976.

The previous prime is 213313233191. The next prime is 213313233227. The reversal of 213313233220 is 22332313312.

It is a super-2 number, since 2×213313233220² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213313233227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 388267 + ... + 759853.

It is an arithmetic number, because the mean of its divisors is an integer number (18665608416).

Almost surely, 2^213313233220 is an apocalyptic number.

213313233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213313233220 is an abundant number, since it is smaller than the sum of its proper divisors (234661368764).

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

213313233220 is a wasteful number, since it uses less digits than its factorization.

213313233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400299 (or 400297 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 213313233220 its reverse (22332313312), we get a palindrome (235645546532).

The spelling of 213313233220 in words is "two hundred thirteen billion, three hundred thirteen million, two hundred thirty-three thousand, two hundred twenty".