20204040201 has 16 divisors (see below), whose sum is σ = 28526313024. Its totient is φ = 12675728384.

The previous prime is 20204040191. The next prime is 20204040209. The reversal of 20204040201 is 10204040202.

It is a cyclic number.

It is not a de Polignac number, because 20204040201 - 2⁵ = 20204040169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20204040209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771346 + ... + 797108.

It is an arithmetic number, because the mean of its divisors is an integer number (1782894564).

Almost surely, 2^20204040201 is an apocalyptic number.

It is an amenable number.

20204040201 is a deficient number, since it is larger than the sum of its proper divisors (8322272823).

20204040201 is a wasteful number, since it uses less digits than its factorization.

20204040201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41160.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20204040201 its reverse (10204040202), we get a palindrome (30408080403).

Subtracting from 20204040201 its reverse (10204040202), we obtain a palindrome (9999999999).

The spelling of 20204040201 in words is "twenty billion, two hundred four million, forty thousand, two hundred one".