122170042 has 8 divisors (see below), whose sum is σ = 183362976. Its totient is φ = 61049052.

The previous prime is 122170031. The next prime is 122170049. The reversal of 122170042 is 240071221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (122170049) 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 3 ways as a sum of consecutive naturals, for example, 13518 + ... + 20665.

It is an arithmetic number, because the mean of its divisors is an integer number (22920372).

Almost surely, 2^122170042 is an apocalyptic number.

122170042 is a deficient number, since it is larger than the sum of its proper divisors (61192934).

122170042 is a wasteful number, since it uses less digits than its factorization.

122170042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35972.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 122170042 is about 11053.0557765715. The cubic root of 122170042 is about 496.1978837761.

The spelling of 122170042 in words is "one hundred twenty-two million, one hundred seventy thousand, forty-two".