21202101101063 has 2 divisors, whose sum is σ = 21202101101064. Its totient is φ = 21202101101062.

The previous prime is 21202101101039. The next prime is 21202101101171. The reversal of 21202101101063 is 36010110120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21202101101063 - 2¹⁰ = 21202101100039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202104101063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601050550531 + 10601050550532.

It is an arithmetic number, because the mean of its divisors is an integer number (10601050550532).

Almost surely, 2^{21202101101063} is an apocalyptic number.

21202101101063 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202101101063 is an equidigital number, since it uses as much as digits as its factorization.

21202101101063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21202101101063 its reverse (36010110120212), we get a palindrome (57212211221275).

The spelling of 21202101101063 in words is "twenty-one trillion, two hundred two billion, one hundred one million, one hundred one thousand, sixty-three".