200020020001 has 8 divisors (see below), whose sum is σ = 207820837800. Its totient is φ = 192279440640.

The previous prime is 200020019971. The next prime is 200020020023. The reversal of 200020020001 is 100020020002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 93025610001 + 106994410000 = 305001^2 + 327100^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200020020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020020601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15052840 + ... + 15066121.

It is an arithmetic number, because the mean of its divisors is an integer number (25977604725).

Almost surely, 2^200020020001 is an apocalyptic number.

It is an amenable number.

200020020001 is a deficient number, since it is larger than the sum of its proper divisors (7800817799).

200020020001 is a wasteful number, since it uses less digits than its factorization.

200020020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30119219.

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 200020020001 its reverse (100020020002), we get a palindrome (300040040003).

Subtracting from 200020020001 its reverse (100020020002), we obtain a palindrome (99999999999).

The spelling of 200020020001 in words is "two hundred billion, twenty million, twenty thousand, one".