201220100027 has 2 divisors, whose sum is σ = 201220100028. Its totient is φ = 201220100026.

The previous prime is 201220100017. The next prime is 201220100087. The reversal of 201220100027 is 720001022102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201220100027 - 2⁸ = 201220099771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201220099978 and 201220100014.

It is not a weakly prime, because it can be changed into another prime (201220100017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610050013 + 100610050014.

It is an arithmetic number, because the mean of its divisors is an integer number (100610050014).

Almost surely, 2^201220100027 is an apocalyptic number.

201220100027 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220100027 is an equidigital number, since it uses as much as digits as its factorization.

201220100027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

Adding to 201220100027 its reverse (720001022102), we get a palindrome (921221122129).

The spelling of 201220100027 in words is "two hundred one billion, two hundred twenty million, one hundred thousand, twenty-seven".