122171144 has 16 divisors (see below), whose sum is σ = 234658620. Its totient is φ = 59595520.

The previous prime is 122171143. The next prime is 122171149. The reversal of 122171144 is 441171221.

It can be written as a sum of positive squares in 2 ways, for example, as 122102500 + 68644 = 11050^2 + 262^2 .

It is a super-3 number, since 3×122171144³ (a number of 25 digits) contains 333 as substring.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185909 + ... + 186564.

Almost surely, 2^122171144 is an apocalyptic number.

It is an amenable number.

122171144 is a deficient number, since it is larger than the sum of its proper divisors (112487476).

122171144 is a wasteful number, since it uses less digits than its factorization.

122171144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372520 (or 372516 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 122171144 is about 11053.1056269268. The cubic root of 122171144 is about 496.1993757087.

The spelling of 122171144 in words is "one hundred twenty-two million, one hundred seventy-one thousand, one hundred forty-four".