221001201220027 has 2 divisors, whose sum is σ = 221001201220028. Its totient is φ = 221001201220026.

The previous prime is 221001201219977. The next prime is 221001201220043. The reversal of 221001201220027 is 720022102100122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221001201220027 - 2⁷ = 221001201219899 is a prime.

It is not a weakly prime, because it can be changed into another prime (221001201220087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110500600610013 + 110500600610014.

It is an arithmetic number, because the mean of its divisors is an integer number (110500600610014).

Almost surely, 2^{221001201220027} is an apocalyptic number.

221001201220027 is a deficient number, since it is larger than the sum of its proper divisors (1).

221001201220027 is an equidigital number, since it uses as much as digits as its factorization.

221001201220027 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 22.

Adding to 221001201220027 its reverse (720022102100122), we get a palindrome (941023303320149).

The spelling of 221001201220027 in words is "two hundred twenty-one trillion, one billion, two hundred one million, two hundred twenty thousand, twenty-seven".