1099322471520 has 864 divisors, whose sum is σ = 4708846239552. Its totient is φ = 231489183744.

The previous prime is 1099322471509. The next prime is 1099322471543. The reversal of 1099322471520 is 251742239901.

1099322471520 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 32 + 24 + 71 + 520 = 666.

It is a super-2 number, since 2×1099322471520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 681538234 + ... + 681539846.

It is an arithmetic number, because the mean of its divisors is an integer number (5450053518).

Almost surely, 2^{1099322471520} is an apocalyptic number.

1099322471520 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 1099322471520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354423119776).

1099322471520 is an abundant number, since it is smaller than the sum of its proper divisors (3609523768032).

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

1099322471520 is a wasteful number, since it uses less digits than its factorization.

1099322471520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2386 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 1099322471520 in words is "one trillion, ninety-nine billion, three hundred twenty-two million, four hundred seventy-one thousand, five hundred twenty".