1228210171 has 2 divisors, whose sum is σ = 1228210172. Its totient is φ = 1228210170.

The previous prime is 1228210163. The next prime is 1228210177. The reversal of 1228210171 is 1710128221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1710128221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1228210171 - 2³ = 1228210163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1228210177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614105085 + 614105086.

It is an arithmetic number, because the mean of its divisors is an integer number (614105086).

Almost surely, 2^1228210171 is an apocalyptic number.

1228210171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228210171 is an equidigital number, since it uses as much as digits as its factorization.

1228210171 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 25.

The square root of 1228210171 is about 35045.8295807076. The cubic root of 1228210171 is about 1070.9213164157.

Adding to 1228210171 its reverse (1710128221), we get a palindrome (2938338392).

The spelling of 1228210171 in words is "one billion, two hundred twenty-eight million, two hundred ten thousand, one hundred seventy-one".