201220131330 has 192 divisors, whose sum is σ = 543449088000. Its totient is φ = 51624144000.

The previous prime is 201220131323. The next prime is 201220131337. The reversal of 201220131330 is 33131022102.

201220131330 is a `hidden beast` number, since 201 + 2 + 2 + 0 + 131 + 330 = 666.

It is an interprime number because it is at equal distance from previous prime (201220131323) and next prime (201220131337).

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

It is not an unprimeable number, because it can be changed into a prime (201220131337) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83875471 + ... + 83877869.

It is an arithmetic number, because the mean of its divisors is an integer number (2830464000).

Almost surely, 2^201220131330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201220131330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271724544000).

201220131330 is an abundant number, since it is smaller than the sum of its proper divisors (342228956670).

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

201220131330 is a wasteful number, since it uses less digits than its factorization.

201220131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2786 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 201220131330 its reverse (33131022102), we get a palindrome (234351153432).

The spelling of 201220131330 in words is "two hundred one billion, two hundred twenty million, one hundred thirty-one thousand, three hundred thirty".