1112120001000 has 192 divisors, whose sum is σ = 3759980627520. Its totient is φ = 296485257600.

The previous prime is 1112120000987. The next prime is 1112120001049. The reversal of 1112120001000 is 1000212111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38172439 + ... + 38201561.

It is an arithmetic number, because the mean of its divisors is an integer number (19583232435).

Almost surely, 2^{1112120001000} is an apocalyptic number.

1112120001000 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 1112120001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1879990313760).

1112120001000 is an abundant number, since it is smaller than the sum of its proper divisors (2647860626520).

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

1112120001000 is a wasteful number, since it uses less digits than its factorization.

1112120001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33393 (or 33376 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1112120001000 its reverse (1000212111), we get a palindrome (1113120213111).

The spelling of 1112120001000 in words is "one trillion, one hundred twelve billion, one hundred twenty million, one thousand".