1222851168 has 360 divisors, whose sum is σ = 4525866576. Its totient is φ = 317053440.

The previous prime is 1222851163. The next prime is 1222851173. The reversal of 1222851168 is 8611582221.

It is an interprime number because it is at equal distance from previous prime (1222851163) and next prime (1222851173).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222851163) by changing a digit.

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 59 ways as a sum of consecutive naturals, for example, 2195146 + ... + 2195702.

Almost surely, 2^1222851168 is an apocalyptic number.

1222851168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222851168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262933288).

1222851168 is an abundant number, since it is smaller than the sum of its proper divisors (3303015408).

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

1222851168 is a wasteful number, since it uses less digits than its factorization.

1222851168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 580 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 1222851168 is about 34969.2889261420. The cubic root of 1222851168 is about 1069.3614753834.

The spelling of 1222851168 in words is "one billion, two hundred twenty-two million, eight hundred fifty-one thousand, one hundred sixty-eight".