20002012001 has 4 divisors (see below), whose sum is σ = 20013998100. Its totient is φ = 19990025904.

The previous prime is 20002011941. The next prime is 20002012007. The reversal of 20002012001 is 10021020002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15098511376 + 4903500625 = 122876^2 + 70025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002012001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20002012001.

It is not an unprimeable number, because it can be changed into a prime (20002012007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5990546 + ... + 5993883.

It is an arithmetic number, because the mean of its divisors is an integer number (5003499525).

Almost surely, 2^20002012001 is an apocalyptic number.

It is an amenable number.

20002012001 is a deficient number, since it is larger than the sum of its proper divisors (11986099).

20002012001 is a wasteful number, since it uses less digits than its factorization.

20002012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11986098.

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

Adding to 20002012001 its reverse (10021020002), we get a palindrome (30023032003).

The spelling of 20002012001 in words is "twenty billion, two million, twelve thousand, one".