201322310220 has 120 divisors (see below), whose sum is σ = 631720815264. Its totient is φ = 53671901184.

The previous prime is 201322310177. The next prime is 201322310261. The reversal of 201322310220 is 22013223102.

201322310220 is a `hidden beast` number, since 2 + 0 + 132 + 2 + 310 + 220 = 666.

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 = 201322310193 and 201322310202.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7151212 + ... + 7179308.

Almost surely, 2^201322310220 is an apocalyptic number.

201322310220 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 201322310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315860407632).

201322310220 is an abundant number, since it is smaller than the sum of its proper divisors (430398505044).

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

201322310220 is a wasteful number, since it uses less digits than its factorization.

201322310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32541 (or 32530 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201322310220 its reverse (22013223102), we get a palindrome (223335533322).

The spelling of 201322310220 in words is "two hundred one billion, three hundred twenty-two million, three hundred ten thousand, two hundred twenty".