1222985328 has 20 divisors (see below), whose sum is σ = 3159378888. Its totient is φ = 407661760.

The previous prime is 1222985311. The next prime is 1222985347. The reversal of 1222985328 is 8235892221.

It is a super-2 number, since 2×1222985328² = 2991386225006535168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222985328.

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 3 ways as a sum of consecutive naturals, for example, 12739383 + ... + 12739478.

Almost surely, 2^1222985328 is an apocalyptic number.

It is an amenable number.

1222985328 is an abundant number, since it is smaller than the sum of its proper divisors (1936393560).

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

1222985328 is a wasteful number, since it uses less digits than its factorization.

1222985328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25478872 (or 25478866 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1222985328 is about 34971.2071281504. The cubic root of 1222985328 is about 1069.4005807935.

The spelling of 1222985328 in words is "one billion, two hundred twenty-two million, nine hundred eighty-five thousand, three hundred twenty-eight".