3081221298288 has 720 divisors, whose sum is σ = 10988252064000. Its totient is φ = 824074352640.

The previous prime is 3081221298277. The next prime is 3081221298313. The reversal of 3081221298288 is 8828921221803.

3081221298288 is a `hidden beast` number, since 30 + 81 + 221 + 298 + 28 + 8 = 666.

3081221298288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1217391583 + ... + 1217394113.

It is an arithmetic number, because the mean of its divisors is an integer number (15261461200).

Almost surely, 2^{3081221298288} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3081221298288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5494126032000).

3081221298288 is an abundant number, since it is smaller than the sum of its proper divisors (7907030765712).

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

3081221298288 is a wasteful number, since it uses less digits than its factorization.

3081221298288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 3081221298288 in words is "three trillion, eighty-one billion, two hundred twenty-one million, two hundred ninety-eight thousand, two hundred eighty-eight".