122281171 has 4 divisors (see below), whose sum is σ = 123102000. Its totient is φ = 121460344.

The previous prime is 122281163. The next prime is 122281183. The reversal of 122281171 is 171182221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171182221 = 7 ⋅24454603.

It is a cyclic number.

It is not a de Polignac number, because 122281171 - 2³ = 122281163 is a prime.

It is a super-2 number, since 2×122281171² = 29905369562262482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122281141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410191 + ... + 410488.

It is an arithmetic number, because the mean of its divisors is an integer number (30775500).

Almost surely, 2^122281171 is an apocalyptic number.

122281171 is a deficient number, since it is larger than the sum of its proper divisors (820829).

122281171 is an equidigital number, since it uses as much as digits as its factorization.

122281171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820828.

The product of its digits is 448, while the sum is 25.

The square root of 122281171 is about 11058.0817052507. The cubic root of 122281171 is about 496.3482896166.

The spelling of 122281171 in words is "one hundred twenty-two million, two hundred eighty-one thousand, one hundred seventy-one".