201044323220 has 144 divisors (see below), whose sum is σ = 489511194480. Its totient is φ = 69078417408.

The previous prime is 201044323189. The next prime is 201044323231. The reversal of 201044323220 is 22323440102.

201044323220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 24 ways, for example, as 174070859524 + 26973463696 = 417218^2 + 164236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5094284 + ... + 5133596.

It is an arithmetic number, because the mean of its divisors is an integer number (3399383295).

Almost surely, 2^201044323220 is an apocalyptic number.

201044323220 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 201044323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244755597240).

201044323220 is an abundant number, since it is smaller than the sum of its proper divisors (288466871260).

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

201044323220 is a wasteful number, since it uses less digits than its factorization.

201044323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39454 (or 39439 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 201044323220 its reverse (22323440102), we get a palindrome (223367763322).

The spelling of 201044323220 in words is "two hundred one billion, forty-four million, three hundred twenty-three thousand, two hundred twenty".