122001271 has 4 divisors (see below), whose sum is σ = 139430032. Its totient is φ = 104572512.

The previous prime is 122001259. The next prime is 122001287. The reversal of 122001271 is 172100221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122001271 - 2⁹ = 122000759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001221) 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 in 3 ways as a sum of consecutive naturals, for example, 8714370 + ... + 8714383.

It is an arithmetic number, because the mean of its divisors is an integer number (34857508).

Almost surely, 2^122001271 is an apocalyptic number.

122001271 is a deficient number, since it is larger than the sum of its proper divisors (17428761).

122001271 is an equidigital number, since it uses as much as digits as its factorization.

122001271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17428760.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 122001271 is about 11045.4185525040. The cubic root of 122001271 is about 495.9692887137.

Adding to 122001271 its reverse (172100221), we get a palindrome (294101492).

The spelling of 122001271 in words is "one hundred twenty-two million, one thousand, two hundred seventy-one".