122171263 has 2 divisors, whose sum is σ = 122171264. Its totient is φ = 122171262.

The previous prime is 122171261. The next prime is 122171281. The reversal of 122171263 is 362171221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (362171221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122171263 - 2¹ = 122171261 is a prime.

Together with 122171261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122171261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61085631 + 61085632.

It is an arithmetic number, because the mean of its divisors is an integer number (61085632).

Almost surely, 2^122171263 is an apocalyptic number.

122171263 is a deficient number, since it is larger than the sum of its proper divisors (1).

122171263 is an equidigital number, since it uses as much as digits as its factorization.

122171263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 122171263 is about 11053.1110100279. Note that the first 3 decimals coincide. The cubic root of 122171263 is about 496.1995368153.

The spelling of 122171263 in words is "one hundred twenty-two million, one hundred seventy-one thousand, two hundred sixty-three".