1122815566320 has 320 divisors, whose sum is σ = 4086194466816. Its totient is φ = 249696092160.

The previous prime is 1122815566307. The next prime is 1122815566351. The reversal of 1122815566320 is 236655182211.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25256752 + ... + 25301168.

Almost surely, 2^{1122815566320} is an apocalyptic number.

1122815566320 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 1122815566320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2043097233408).

1122815566320 is an abundant number, since it is smaller than the sum of its proper divisors (2963378900496).

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

1122815566320 is a wasteful number, since it uses less digits than its factorization.

1122815566320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44848 (or 44842 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 1122815566320 in words is "one trillion, one hundred twenty-two billion, eight hundred fifteen million, five hundred sixty-six thousand, three hundred twenty".