213324220 has 24 divisors (see below), whose sum is σ = 448583184. Its totient is φ = 85214976.

The previous prime is 213324187. The next prime is 213324233. The reversal of 213324220 is 22423312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8964 + ... + 22516.

It is an arithmetic number, because the mean of its divisors is an integer number (18690966).

Almost surely, 2^213324220 is an apocalyptic number.

213324220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213324220 is an abundant number, since it is smaller than the sum of its proper divisors (235258964).

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

213324220 is a wasteful number, since it uses less digits than its factorization.

213324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14349 (or 14347 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 213324220 is about 14605.6228898325. The cubic root of 213324220 is about 597.5121243083.

Adding to 213324220 its reverse (22423312), we get a palindrome (235747532).

It can be divided in two parts, 21332 and 4220, that added together give a palindrome (25552).

The spelling of 213324220 in words is "two hundred thirteen million, three hundred twenty-four thousand, two hundred twenty".