21602422060201 has 2 divisors, whose sum is σ = 21602422060202. Its totient is φ = 21602422060200.

The previous prime is 21602422060199. The next prime is 21602422060217. The reversal of 21602422060201 is 10206022420612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20728907515801 + 873514544400 = 4552901^2 + 934620^2 .

It is a cyclic number.

It is not a de Polignac number, because 21602422060201 - 2¹ = 21602422060199 is a prime.

Together with 21602422060199, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21602422060201.

It is not a weakly prime, because it can be changed into another prime (21602422060801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10801211030100 + 10801211030101.

It is an arithmetic number, because the mean of its divisors is an integer number (10801211030101).

Almost surely, 2^{21602422060201} is an apocalyptic number.

It is an amenable number.

21602422060201 is a deficient number, since it is larger than the sum of its proper divisors (1).

21602422060201 is an equidigital number, since it uses as much as digits as its factorization.

21602422060201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21602422060201 its reverse (10206022420612), we get a palindrome (31808444480813).

The spelling of 21602422060201 in words is "twenty-one trillion, six hundred two billion, four hundred twenty-two million, sixty thousand, two hundred one".