201330203220 has 144 divisors (see below), whose sum is σ = 613074728448. Its totient is φ = 53479802880.

The previous prime is 201330203153. The next prime is 201330203251. The reversal of 201330203220 is 22302033102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201330203193 and 201330203202.

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, 99815652 + ... + 99817668.

It is an arithmetic number, because the mean of its divisors is an integer number (4257463392).

Almost surely, 2^201330203220 is an apocalyptic number.

201330203220 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 201330203220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306537364224).

201330203220 is an abundant number, since it is smaller than the sum of its proper divisors (411744525228).

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

201330203220 is a wasteful number, since it uses less digits than its factorization.

201330203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 201330203220 its reverse (22302033102), we get a palindrome (223632236322).

It can be divided in two parts, 201330 and 203220, that added together give a triangular number (404550 = T₈₉₉).

The spelling of 201330203220 in words is "two hundred one billion, three hundred thirty million, two hundred three thousand, two hundred twenty".