2002020201 has 24 divisors (see below), whose sum is σ = 2995672680. Its totient is φ = 1287475200.

The previous prime is 2002020199. The next prime is 2002020217. The reversal of 2002020201 is 1020202002.

It can be written as a sum of positive squares in 4 ways, for example, as 327573801 + 1674446400 = 18099^2 + 40920^2 .

It is not a de Polignac number, because 2002020201 - 2¹ = 2002020199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2002020221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2361 + ... + 63321.

It is an arithmetic number, because the mean of its divisors is an integer number (124819695).

Almost surely, 2^2002020201 is an apocalyptic number.

It is an amenable number.

2002020201 is a deficient number, since it is larger than the sum of its proper divisors (993652479).

2002020201 is a wasteful number, since it uses less digits than its factorization.

2002020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61097 (or 61094 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2002020201 is about 44743.9403830284. The cubic root of 2002020201 is about 1260.3451227690.

Adding to 2002020201 its reverse (1020202002), we get a palindrome (3022222203).

The spelling of 2002020201 in words is "two billion, two million, twenty thousand, two hundred one".