2228009321 has 2 divisors, whose sum is σ = 2228009322. Its totient is φ = 2228009320.

The previous prime is 2228009299. The next prime is 2228009327. The reversal of 2228009321 is 1239008222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2125210000 + 102799321 = 46100^2 + 10139^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228009321 - 2¹⁰ = 2228008297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2228009327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114004660 + 1114004661.

It is an arithmetic number, because the mean of its divisors is an integer number (1114004661).

Almost surely, 2^2228009321 is an apocalyptic number.

It is an amenable number.

2228009321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228009321 is an equidigital number, since it uses as much as digits as its factorization.

2228009321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2228009321 is about 47201.7936205818. The cubic root of 2228009321 is about 1306.0876847650.

The spelling of 2228009321 in words is "two billion, two hundred twenty-eight million, nine thousand, three hundred twenty-one".