122422178 has 8 divisors (see below), whose sum is σ = 185845968. Its totient is φ = 60473524.

The previous prime is 122422177. The next prime is 122422211. The reversal of 122422178 is 871224221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122422178.

It is not an unprimeable number, because it can be changed into a prime (122422171) 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, 368576 + ... + 368907.

It is an arithmetic number, because the mean of its divisors is an integer number (23230746).

Almost surely, 2^122422178 is an apocalyptic number.

122422178 is a deficient number, since it is larger than the sum of its proper divisors (63423790).

122422178 is an equidigital number, since it uses as much as digits as its factorization.

122422178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737568.

The product of its digits is 3584, while the sum is 29.

The square root of 122422178 is about 11064.4556124556. The cubic root of 122422178 is about 496.5390022661.

Adding to 122422178 its reverse (871224221), we get a palindrome (993646399).

The spelling of 122422178 in words is "one hundred twenty-two million, four hundred twenty-two thousand, one hundred seventy-eight".