1221468360 has 256 divisors, whose sum is σ = 4628275200. Its totient is φ = 251277312.

The previous prime is 1221468271. The next prime is 1221468389. The reversal of 1221468360 is 638641221.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 326581 + ... + 330299.

It is an arithmetic number, because the mean of its divisors is an integer number (18079200).

Almost surely, 2^1221468360 is an apocalyptic number.

1221468360 is a gapful number since it is divisible by the number (10) 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 1221468360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2314137600).

1221468360 is an abundant number, since it is smaller than the sum of its proper divisors (3406806840).

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

1221468360 is a wasteful number, since it uses less digits than its factorization.

1221468360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780 (or 3776 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1221468360 is about 34949.5115845701. The cubic root of 1221468360 is about 1068.9582430646.

The spelling of 1221468360 in words is "one billion, two hundred twenty-one million, four hundred sixty-eight thousand, three hundred sixty".