201333220 has 96 divisors (see below), whose sum is σ = 485968896. Its totient is φ = 69388800.

The previous prime is 201333157. The next prime is 201333221. The reversal of 201333220 is 22333102.

201333220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201333194 and 201333203.

It is not an unprimeable number, because it can be changed into a prime (201333221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361182 + ... + 361738.

It is an arithmetic number, because the mean of its divisors is an integer number (5062176).

Almost surely, 2^201333220 is an apocalyptic number.

201333220 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 201333220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242984448).

201333220 is an abundant number, since it is smaller than the sum of its proper divisors (284635676).

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

201333220 is a wasteful number, since it uses less digits than its factorization.

201333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 201333220 is about 14189.1937755462. The cubic root of 201333220 is about 586.1001238370.

Adding to 201333220 its reverse (22333102), we get a palindrome (223666322).

The spelling of 201333220 in words is "two hundred one million, three hundred thirty-three thousand, two hundred twenty".