21210002201027 has 2 divisors, whose sum is σ = 21210002201028. Its totient is φ = 21210002201026.

The previous prime is 21210002200993. The next prime is 21210002201033. The reversal of 21210002201027 is 72010220001212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21210002201027 - 2⁶ = 21210002200963 is a prime.

It is not a weakly prime, because it can be changed into another prime (21210002201527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605001100513 + 10605001100514.

It is an arithmetic number, because the mean of its divisors is an integer number (10605001100514).

Almost surely, 2^{21210002201027} is an apocalyptic number.

21210002201027 is a deficient number, since it is larger than the sum of its proper divisors (1).

21210002201027 is an equidigital number, since it uses as much as digits as its factorization.

21210002201027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 21210002201027 its reverse (72010220001212), we get a palindrome (93220222202239).

The spelling of 21210002201027 in words is "twenty-one trillion, two hundred ten billion, two million, two hundred one thousand, twenty-seven".