1099385221344 has 48 divisors (see below), whose sum is σ = 2886905588112. Its totient is φ = 366332295168.

The previous prime is 1099385221271. The next prime is 1099385221357. The reversal of 1099385221344 is 4431225839901.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749199 + ... + 2293134.

It is an arithmetic number, because the mean of its divisors is an integer number (60143866419).

Almost surely, 2^{1099385221344} is an apocalyptic number.

It is an amenable number.

1099385221344 is an abundant number, since it is smaller than the sum of its proper divisors (1787520366768).

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

1099385221344 is a wasteful number, since it uses less digits than its factorization.

1099385221344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045179 (or 4045171 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 1099385221344 in words is "one trillion, ninety-nine billion, three hundred eighty-five million, two hundred twenty-one thousand, three hundred forty-four".