20020020520211 has 2 divisors, whose sum is σ = 20020020520212. Its totient is φ = 20020020520210.

The previous prime is 20020020520189. The next prime is 20020020520217. The reversal of 20020020520211 is 11202502002002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020020520211 - 2¹⁸ = 20020020258067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020020520211.

It is not a weakly prime, because it can be changed into another prime (20020020520217) 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, 10010010260105 + 10010010260106.

It is an arithmetic number, because the mean of its divisors is an integer number (10010010260106).

Almost surely, 2^{20020020520211} is an apocalyptic number.

20020020520211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020020520211 is an equidigital number, since it uses as much as digits as its factorization.

20020020520211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 20020020520211 its reverse (11202502002002), we get a palindrome (31222522522213).

The spelling of 20020020520211 in words is "twenty trillion, twenty billion, twenty million, five hundred twenty thousand, two hundred eleven".