21202130200127 has 2 divisors, whose sum is σ = 21202130200128. Its totient is φ = 21202130200126.

The previous prime is 21202130200079. The next prime is 21202130200151. The reversal of 21202130200127 is 72100203120212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202130200127 - 2⁴⁴ = 3609944155711 is a prime.

It is a super-2 number, since 2×21202130200127² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202130203127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601065100063 + 10601065100064.

It is an arithmetic number, because the mean of its divisors is an integer number (10601065100064).

Almost surely, 2^{21202130200127} is an apocalyptic number.

21202130200127 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202130200127 is an equidigital number, since it uses as much as digits as its factorization.

21202130200127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 21202130200127 its reverse (72100203120212), we get a palindrome (93302333320339).

The spelling of 21202130200127 in words is "twenty-one trillion, two hundred two billion, one hundred thirty million, two hundred thousand, one hundred twenty-seven".