1220028168 has 16 divisors (see below), whose sum is σ = 3050070480. Its totient is φ = 406676048.

The previous prime is 1220028163. The next prime is 1220028181. The reversal of 1220028168 is 8618200221.

It is not an unprimeable number, because it can be changed into a prime (1220028163) 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, 25417230 + ... + 25417277.

It is an arithmetic number, because the mean of its divisors is an integer number (190629405).

Almost surely, 2^1220028168 is an apocalyptic number.

It is an amenable number.

1220028168 is an abundant number, since it is smaller than the sum of its proper divisors (1830042312).

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

1220028168 is a wasteful number, since it uses less digits than its factorization.

1220028168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50834516 (or 50834512 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1220028168 is about 34928.9016145656. The cubic root of 1220028168 is about 1068.5379536772.

Adding to 1220028168 its reverse (8618200221), we get a palindrome (9838228389).

The spelling of 1220028168 in words is "one billion, two hundred twenty million, twenty-eight thousand, one hundred sixty-eight".