122281328 has 20 divisors (see below), whose sum is σ = 255145128. Its totient is φ = 56437440.

The previous prime is 122281301. The next prime is 122281333. The reversal of 122281328 is 823182221.

It is a self number, because there is not a number n which added to its sum of digits gives 122281328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293738 + ... + 294153.

Almost surely, 2^122281328 is an apocalyptic number.

It is an amenable number.

122281328 is an abundant number, since it is smaller than the sum of its proper divisors (132863800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122281328 is a wasteful number, since it uses less digits than its factorization.

122281328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587912 (or 587906 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 122281328 is about 11058.0888041289. The cubic root of 122281328 is about 496.3485020413.

The spelling of 122281328 in words is "one hundred twenty-two million, two hundred eighty-one thousand, three hundred twenty-eight".