1172224740721 has 8 divisors (see below), whose sum is σ = 1244561103360. Its totient is φ = 1100264152128.

The previous prime is 1172224740667. The next prime is 1172224740727. The reversal of 1172224740721 is 1270474222711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1172224740721 - 2¹¹ = 1172224738673 is a prime.

It is a super-2 number, since 2×1172224740721² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172224740727) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93937081 + ... + 93949558.

It is an arithmetic number, because the mean of its divisors is an integer number (155570137920).

Almost surely, 2^{1172224740721} is an apocalyptic number.

It is an amenable number.

1172224740721 is a deficient number, since it is larger than the sum of its proper divisors (72336362639).

1172224740721 is a wasteful number, since it uses less digits than its factorization.

1172224740721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187887023.

The product of its (nonzero) digits is 87808, while the sum is 40.

The spelling of 1172224740721 in words is "one trillion, one hundred seventy-two billion, two hundred twenty-four million, seven hundred forty thousand, seven hundred twenty-one".