2002012001 has 16 divisors (see below), whose sum is σ = 2259484416. Its totient is φ = 1758000000.

The previous prime is 2002011959. The next prime is 2002012027. The reversal of 2002012001 is 1002102002.

It is a cyclic number.

It is not a de Polignac number, because 2002012001 - 2⁶ = 2002011937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002012001.

It is not an unprimeable number, because it can be changed into a prime (2002012081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23576 + ... + 67526.

It is an arithmetic number, because the mean of its divisors is an integer number (141217776).

Almost surely, 2^2002012001 is an apocalyptic number.

It is an amenable number.

2002012001 is a deficient number, since it is larger than the sum of its proper divisors (257472415).

2002012001 is a wasteful number, since it uses less digits than its factorization.

2002012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44104.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2002012001 is about 44743.8487504148. The cubic root of 2002012001 is about 1260.3434020331.

Adding to 2002012001 its reverse (1002102002), we get a palindrome (3004114003).

Subtracting from 2002012001 its reverse (1002102002), we obtain a palindrome (999909999).

It can be divided in two parts, 200201 and 2001, that added together give a palindrome (202202).

The spelling of 2002012001 in words is "two billion, two million, twelve thousand, one".