20522440201 has 2 divisors, whose sum is σ = 20522440202. Its totient is φ = 20522440200.

The previous prime is 20522440199. The next prime is 20522440217. The reversal of 20522440201 is 10204422502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20420410000 + 102030201 = 142900^2 + 10101^2 .

It is a cyclic number.

It is not a de Polignac number, because 20522440201 - 2¹ = 20522440199 is a prime.

Together with 20522440199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20522440241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10261220100 + 10261220101.

It is an arithmetic number, because the mean of its divisors is an integer number (10261220101).

Almost surely, 2^20522440201 is an apocalyptic number.

It is an amenable number.

20522440201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20522440201 is an equidigital number, since it uses as much as digits as its factorization.

20522440201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 20522440201 its reverse (10204422502), we get a palindrome (30726862703).

The spelling of 20522440201 in words is "twenty billion, five hundred twenty-two million, four hundred forty thousand, two hundred one".