201220112147 has 2 divisors, whose sum is σ = 201220112148. Its totient is φ = 201220112146.

The previous prime is 201220112081. The next prime is 201220112209. The reversal of 201220112147 is 741211022102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201220112147 - 2²⁴ = 201203334931 is a prime.

It is not a weakly prime, because it can be changed into another prime (201220112447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610056073 + 100610056074.

It is an arithmetic number, because the mean of its divisors is an integer number (100610056074).

Almost surely, 2^201220112147 is an apocalyptic number.

201220112147 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220112147 is an equidigital number, since it uses as much as digits as its factorization.

201220112147 is an odious number, because the sum of its binary digits is odd.

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

Adding to 201220112147 its reverse (741211022102), we get a palindrome (942431134249).

The spelling of 201220112147 in words is "two hundred one billion, two hundred twenty million, one hundred twelve thousand, one hundred forty-seven".