7221333544745 has 32 divisors (see below), whose sum is σ = 8987166120192. Its totient is φ = 5565766493952.

The previous prime is 7221333544723. The next prime is 7221333544781. The reversal of 7221333544745 is 5474453331227.

It is a cyclic number.

It is not a de Polignac number, because 7221333544745 - 2²⁶ = 7221266435881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7221333544693 and 7221333544702.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 286060094 + ... + 286085336.

It is an arithmetic number, because the mean of its divisors is an integer number (280848941256).

Almost surely, 2^{7221333544745} is an apocalyptic number.

It is an amenable number.

7221333544745 is a deficient number, since it is larger than the sum of its proper divisors (1765832575447).

7221333544745 is a wasteful number, since it uses less digits than its factorization.

7221333544745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40401.

The product of its digits is 8467200, while the sum is 50.

The spelling of 7221333544745 in words is "seven trillion, two hundred twenty-one billion, three hundred thirty-three million, five hundred forty-four thousand, seven hundred forty-five".