200331220 has 12 divisors (see below), whose sum is σ = 420695604. Its totient is φ = 80132480.

The previous prime is 200331211. The next prime is 200331223. The reversal of 200331220 is 22133002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82955664 + 117375556 = 9108^2 + 10834^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 200331220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200331223) 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 3 ways as a sum of consecutive naturals, for example, 5008261 + ... + 5008300.

It is an arithmetic number, because the mean of its divisors is an integer number (35057967).

Almost surely, 2^200331220 is an apocalyptic number.

200331220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200331220 is an abundant number, since it is smaller than the sum of its proper divisors (220364384).

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

200331220 is a wasteful number, since it uses less digits than its factorization.

200331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016570 (or 10016568 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 200331220 is about 14153.8411747483. The cubic root of 200331220 is about 585.1262006446.

Adding to 200331220 its reverse (22133002), we get a palindrome (222464222).

The spelling of 200331220 in words is "two hundred million, three hundred thirty-one thousand, two hundred twenty".