21202011102163 has 2 divisors, whose sum is σ = 21202011102164. Its totient is φ = 21202011102162.

The previous prime is 21202011102127. The next prime is 21202011102191. The reversal of 21202011102163 is 36120111020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202011102163 - 2²⁵ = 21201977547731 is a prime.

It is a super-2 number, since 2×21202011102163² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21202011102113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601005551081 + 10601005551082.

It is an arithmetic number, because the mean of its divisors is an integer number (10601005551082).

Almost surely, 2^{21202011102163} is an apocalyptic number.

21202011102163 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202011102163 is an equidigital number, since it uses as much as digits as its factorization.

21202011102163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21202011102163 its reverse (36120111020212), we get a palindrome (57322122122375).

The spelling of 21202011102163 in words is "twenty-one trillion, two hundred two billion, eleven million, one hundred two thousand, one hundred sixty-three".