201322020 has 48 divisors (see below), whose sum is σ = 570850560. Its totient is φ = 53005056.

The previous prime is 201321997. The next prime is 201322039. The reversal of 201322020 is 20223102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201321987 and 201322005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16497 + ... + 25976.

It is an arithmetic number, because the mean of its divisors is an integer number (11892720).

Almost surely, 2^201322020 is an apocalyptic number.

201322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201322020 is an abundant number, since it is smaller than the sum of its proper divisors (369528540).

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

201322020 is a wasteful number, since it uses less digits than its factorization.

201322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42564 (or 42562 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 201322020 is about 14188.7991035182. The cubic root of 201322020 is about 586.0892555476.

Adding to 201322020 its reverse (20223102), we get a palindrome (221545122).

The spelling of 201322020 in words is "two hundred one million, three hundred twenty-two thousand, twenty".