1121163322500 has 675 divisors, whose sum is σ = 3987940593483. Its totient is φ = 274453920000.

The previous prime is 1121163322427. The next prime is 1121163322507. The reversal of 1121163322500 is 52233611211.

The square root of 1121163322500 is 1058850.

It is a perfect power (a square), and thus also a powerful number.

1121163322500 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 1 + 633 + 2 + 25 + 0 + 0 = 666.

It can be written as a sum of positive squares in 22 ways, for example, as 51577135236 + 1069586187264 = 227106^2 + 1034208^2 .

It is a tau number, because it is divible by the number of its divisors (675).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1121163322507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 224 ways as a sum of consecutive naturals, for example, 6194272410 + ... + 6194272590.

Almost surely, 2^{1121163322500} is an apocalyptic number.

1121163322500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121163322500 is the 1058850-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121163322500

1121163322500 is an abundant number, since it is smaller than the sum of its proper divisors (2866777270983).

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

1121163322500 is an equidigital number, since it uses as much as digits as its factorization.

1121163322500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 1121163322500 its reverse (52233611211), we get a palindrome (1173396933711).

The spelling of 1121163322500 in words is "one trillion, one hundred twenty-one billion, one hundred sixty-three million, three hundred twenty-two thousand, five hundred".