122171147 has 8 divisors (see below), whose sum is σ = 145694976. Its totient is φ = 100165032.

The previous prime is 122171143. The next prime is 122171149. The reversal of 122171147 is 741171221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122171147 - 2² = 122171143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122171141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379253 + ... + 379574.

It is an arithmetic number, because the mean of its divisors is an integer number (18211872).

Almost surely, 2^122171147 is an apocalyptic number.

122171147 is a deficient number, since it is larger than the sum of its proper divisors (23523829).

122171147 is an equidigital number, since it uses as much as digits as its factorization.

122171147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758857.

The product of its digits is 784, while the sum is 26.

The square root of 122171147 is about 11053.1057626352. The cubic root of 122171147 is about 496.1993797702.

The spelling of 122171147 in words is "one hundred twenty-two million, one hundred seventy-one thousand, one hundred forty-seven".