213220223220 has 24 divisors (see below), whose sum is σ = 597016625184. Its totient is φ = 56858726176.

The previous prime is 213220223189. The next prime is 213220223243. The reversal of 213220223220 is 22322022312.

213220223220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776835134 + ... + 1776835253.

It is an arithmetic number, because the mean of its divisors is an integer number (24875692716).

Almost surely, 2^213220223220 is an apocalyptic number.

213220223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213220223220 is an abundant number, since it is smaller than the sum of its proper divisors (383796401964).

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

213220223220 is a wasteful number, since it uses less digits than its factorization.

213220223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553670399 (or 3553670397 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 213220223220 its reverse (22322022312), we get a palindrome (235542245532).

The spelling of 213220223220 in words is "two hundred thirteen billion, two hundred twenty million, two hundred twenty-three thousand, two hundred twenty".