9021122321 has 2 divisors, whose sum is σ = 9021122322. Its totient is φ = 9021122320.

The previous prime is 9021122287. The next prime is 9021122351. The reversal of 9021122321 is 1232211209.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8390560000 + 630562321 = 91600^2 + 25111^2 .

It is an emirp because it is prime and its reverse (1232211209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9021122321 - 2¹⁴ = 9021105937 is a prime.

It is not a weakly prime, because it can be changed into another prime (9021122351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510561160 + 4510561161.

It is an arithmetic number, because the mean of its divisors is an integer number (4510561161).

Almost surely, 2^9021122321 is an apocalyptic number.

It is an amenable number.

9021122321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9021122321 is an equidigital number, since it uses as much as digits as its factorization.

9021122321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 9021122321 is about 94979.5889704730. The cubic root of 9021122321 is about 2081.7098182858.

The spelling of 9021122321 in words is "nine billion, twenty-one million, one hundred twenty-two thousand, three hundred twenty-one".