99221760000 has 1440 divisors, whose sum is σ = 419091472800. Its totient is φ = 23224320000.

The previous prime is 99221759983. The next prime is 99221760059. The reversal of 99221760000 is 6712299.

It is a tau number, because it is divible by the number of its divisors (1440).

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3421439986 + ... + 3421440014.

It is an arithmetic number, because the mean of its divisors is an integer number (291035745).

Almost surely, 2^99221760000 is an apocalyptic number.

99221760000 is a gapful number since it is divisible by the number (90) 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 99221760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209545736400).

99221760000 is an abundant number, since it is smaller than the sum of its proper divisors (319869712800).

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

99221760000 is an equidigital number, since it uses as much as digits as its factorization.

99221760000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 99221760000 in words is "ninety-nine billion, two hundred twenty-one million, seven hundred sixty thousand".