201020020201 has 48 divisors (see below), whose sum is σ = 274023598464. Its totient is φ = 143485056000.

The previous prime is 201020020193. The next prime is 201020020259. The reversal of 201020020201 is 102020020102.

It is not a de Polignac number, because 201020020201 - 2³ = 201020020193 is a prime.

It is a super-2 number, since 2×201020020201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201020020291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1372761 + ... + 1512121.

It is an arithmetic number, because the mean of its divisors is an integer number (5708824968).

Almost surely, 2^201020020201 is an apocalyptic number.

It is an amenable number.

201020020201 is a deficient number, since it is larger than the sum of its proper divisors (73003578263).

201020020201 is a wasteful number, since it uses less digits than its factorization.

201020020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139534 (or 139523 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 201020020201 its reverse (102020020102), we get a palindrome (303040040303).

Subtracting from 201020020201 its reverse (102020020102), we obtain a palindrome (99000000099).

The spelling of 201020020201 in words is "two hundred one billion, twenty million, twenty thousand, two hundred one".