122712271 has 12 divisors (see below), whose sum is σ = 137176200. Its totient is φ = 109659440.

The previous prime is 122712251. The next prime is 122712277. The reversal of 122712271 is 172217221.

It is not a de Polignac number, because 122712271 - 2²³ = 114323663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122712277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1456 + ... + 15733.

It is an arithmetic number, because the mean of its divisors is an integer number (11431350).

Almost surely, 2^122712271 is an apocalyptic number.

122712271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122712271 is a deficient number, since it is larger than the sum of its proper divisors (14463929).

122712271 is a wasteful number, since it uses less digits than its factorization.

122712271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17270 (or 17259 counting only the distinct ones).

The product of its digits is 784, while the sum is 25.

The square root of 122712271 is about 11077.5570862894. The cubic root of 122712271 is about 496.9308943938.

Adding to 122712271 its reverse (172217221), we get a palindrome (294929492).

The spelling of 122712271 in words is "one hundred twenty-two million, seven hundred twelve thousand, two hundred seventy-one".