122172226 has 16 divisors (see below), whose sum is σ = 201901248. Its totient is φ = 54982000.

The previous prime is 122172181. The next prime is 122172227. The reversal of 122172226 is 622271221.

It is a self number, because there is not a number n which added to its sum of digits gives 122172226.

It is not an unprimeable number, because it can be changed into a prime (122172227) 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 7 ways as a sum of consecutive naturals, for example, 25270 + ... + 29713.

It is an arithmetic number, because the mean of its divisors is an integer number (12618828).

Almost surely, 2^122172226 is an apocalyptic number.

122172226 is a deficient number, since it is larger than the sum of its proper divisors (79729022).

122172226 is a wasteful number, since it uses less digits than its factorization.

122172226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55097.

The product of its digits is 1344, while the sum is 25.

The square root of 122172226 is about 11053.1545723382. The cubic root of 122172226 is about 496.2008405558.

The spelling of 122172226 in words is "one hundred twenty-two million, one hundred seventy-two thousand, two hundred twenty-six".