1121099747725 has 12 divisors (see below), whose sum is σ = 1390436053024. Its totient is φ = 896704078320.

The previous prime is 1121099747723. The next prime is 1121099747741. The reversal of 1121099747725 is 5277479901211.

It is not a de Polignac number, because 1121099747725 - 2¹ = 1121099747723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121099747723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4262769 + ... + 4518118.

Almost surely, 2^{1121099747725} is an apocalyptic number.

It is an amenable number.

1121099747725 is a deficient number, since it is larger than the sum of its proper divisors (269336305299).

1121099747725 is an equidigital number, since it uses as much as digits as its factorization.

1121099747725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786004 (or 8785999 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 55.

The spelling of 1121099747725 in words is "one trillion, one hundred twenty-one billion, ninety-nine million, seven hundred forty-seven thousand, seven hundred twenty-five".