20204200202071 has 2 divisors, whose sum is σ = 20204200202072. Its totient is φ = 20204200202070.

The previous prime is 20204200202047. The next prime is 20204200202129. The reversal of 20204200202071 is 17020200240202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20204200202071 - 2²⁷ = 20204065984343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20204200202471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102100101035 + 10102100101036.

It is an arithmetic number, because the mean of its divisors is an integer number (10102100101036).

Almost surely, 2^{20204200202071} is an apocalyptic number.

20204200202071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204200202071 is an equidigital number, since it uses as much as digits as its factorization.

20204200202071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 22.

Adding to 20204200202071 its reverse (17020200240202), we get a palindrome (37224400442273).

The spelling of 20204200202071 in words is "twenty trillion, two hundred four billion, two hundred million, two hundred two thousand, seventy-one".