7221133871689 has 8 divisors (see below), whose sum is σ = 7224387295752. Its totient is φ = 7217880814080.

The previous prime is 7221133871671. The next prime is 7221133871737. The reversal of 7221133871689 is 9861783311227.

It can be written as a sum of positive squares in 4 ways, for example, as 3795062440464 + 3426071431225 = 1948092^2 + 1850965^2 .

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 7221133871689 - 2¹¹ = 7221133869641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7221133871389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44053647 + ... + 44217259.

It is an arithmetic number, because the mean of its divisors is an integer number (903048411969).

Almost surely, 2^{7221133871689} is an apocalyptic number.

It is an amenable number.

7221133871689 is a deficient number, since it is larger than the sum of its proper divisors (3253424063).

7221133871689 is a wasteful number, since it uses less digits than its factorization.

7221133871689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183227.

The product of its digits is 6096384, while the sum is 58.

The spelling of 7221133871689 in words is "seven trillion, two hundred twenty-one billion, one hundred thirty-three million, eight hundred seventy-one thousand, six hundred eighty-nine".