1121099747724 has 72 divisors (see below), whose sum is σ = 3091933458432. Its totient is φ = 339681485280.

The previous prime is 1121099747723. The next prime is 1121099747741. The reversal of 1121099747724 is 4277479901211.

It is not an unprimeable number, because it can be changed into a prime (1121099747723) 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 23 ways as a sum of consecutive naturals, for example, 2816197 + ... + 3189539.

It is an arithmetic number, because the mean of its divisors is an integer number (42943520256).

Almost surely, 2^{1121099747724} is an apocalyptic number.

It is an amenable number.

1121099747724 is an abundant number, since it is smaller than the sum of its proper divisors (1970833710708).

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

1121099747724 is a wasteful number, since it uses less digits than its factorization.

1121099747724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380947 (or 380942 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 1121099747724 in words is "one trillion, one hundred twenty-one billion, ninety-nine million, seven hundred forty-seven thousand, seven hundred twenty-four".