210221211200027 has 2 divisors, whose sum is σ = 210221211200028. Its totient is φ = 210221211200026.

The previous prime is 210221211199963. The next prime is 210221211200029. The reversal of 210221211200027 is 720002112122012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210221211200027 - 2⁶ = 210221211199963 is a prime.

Together with 210221211200029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 210221211199975 and 210221211200011.

It is not a weakly prime, because it can be changed into another prime (210221211200029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110605600013 + 105110605600014.

It is an arithmetic number, because the mean of its divisors is an integer number (105110605600014).

Almost surely, 2^{210221211200027} is an apocalyptic number.

210221211200027 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221211200027 is an equidigital number, since it uses as much as digits as its factorization.

210221211200027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 210221211200027 its reverse (720002112122012), we get a palindrome (930223323322039).

The spelling of 210221211200027 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thousand, twenty-seven".