9022530221 has 2 divisors, whose sum is σ = 9022530222. Its totient is φ = 9022530220.

The previous prime is 9022530109. The next prime is 9022530239. The reversal of 9022530221 is 1220352209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6368838025 + 2653692196 = 79805^2 + 51514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9022530221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9022530281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4511265110 + 4511265111.

It is an arithmetic number, because the mean of its divisors is an integer number (4511265111).

Almost surely, 2^9022530221 is an apocalyptic number.

It is an amenable number.

9022530221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9022530221 is an equidigital number, since it uses as much as digits as its factorization.

9022530221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 9022530221 is about 94987.0002737217. Note that the first 3 decimals coincide. The cubic root of 9022530221 is about 2081.8181080932.

The spelling of 9022530221 in words is "nine billion, twenty-two million, five hundred thirty thousand, two hundred twenty-one".