20000001201001 has 8 divisors (see below), whose sum is σ = 20088599339520. Its totient is φ = 19911407382288.

The previous prime is 20000001200989. The next prime is 20000001201013. The reversal of 20000001201001 is 10010210000002.

It is an interprime number because it is at equal distance from previous prime (20000001200989) and next prime (20000001201013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000001201001 - 2²¹ = 19999999103849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000001201601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8383480 + ... + 10501558.

It is an arithmetic number, because the mean of its divisors is an integer number (2511074917440).

Almost surely, 2^{20000001201001} is an apocalyptic number.

It is an amenable number.

20000001201001 is a deficient number, since it is larger than the sum of its proper divisors (88598138519).

20000001201001 is a wasteful number, since it uses less digits than its factorization.

20000001201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159903.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20000001201001 its reverse (10010210000002), we get a palindrome (30010211201003).

The spelling of 20000001201001 in words is "twenty trillion, one million, two hundred one thousand, one".