9033226721 has 2 divisors, whose sum is σ = 9033226722. Its totient is φ = 9033226720.

The previous prime is 9033226703. The next prime is 9033226729. The reversal of 9033226721 is 1276223309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5009100625 + 4024126096 = 70775^2 + 63436^2 .

It is a cyclic number.

It is not a de Polignac number, because 9033226721 - 2²⁶ = 8966117857 is a prime.

It is not a weakly prime, because it can be changed into another prime (9033226729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4516613360 + 4516613361.

It is an arithmetic number, because the mean of its divisors is an integer number (4516613361).

Almost surely, 2^9033226721 is an apocalyptic number.

It is an amenable number.

9033226721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9033226721 is an equidigital number, since it uses as much as digits as its factorization.

9033226721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 9033226721 is about 95043.2886689008. The cubic root of 9033226721 is about 2082.6404706591.

The spelling of 9033226721 in words is "nine billion, thirty-three million, two hundred twenty-six thousand, seven hundred twenty-one".