122290678 has 16 divisors (see below), whose sum is σ = 194273280. Its totient is φ = 57612456.

The previous prime is 122290643. The next prime is 122290703. The reversal of 122290678 is 876092221.

It is a congruent number.

It is an unprimeable number.

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, 16758 + ... + 22921.

It is an arithmetic number, because the mean of its divisors is an integer number (12142080).

Almost surely, 2^122290678 is an apocalyptic number.

122290678 is a deficient number, since it is larger than the sum of its proper divisors (71982602).

122290678 is a wasteful number, since it uses less digits than its factorization.

122290678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39771.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 122290678 is about 11058.5115634971. The cubic root of 122290678 is about 496.3611524879.

The spelling of 122290678 in words is "one hundred twenty-two million, two hundred ninety thousand, six hundred seventy-eight".