1230221297 has 2 divisors, whose sum is σ = 1230221298. Its totient is φ = 1230221296.

The previous prime is 1230221281. The next prime is 1230221323. The reversal of 1230221297 is 7921220321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1049695201 + 180526096 = 32399^2 + 13436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230221297 - 2⁴ = 1230221281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230221257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615110648 + 615110649.

It is an arithmetic number, because the mean of its divisors is an integer number (615110649).

Almost surely, 2^1230221297 is an apocalyptic number.

It is an amenable number.

1230221297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230221297 is an equidigital number, since it uses as much as digits as its factorization.

1230221297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1230221297 is about 35074.5106451965. The cubic root of 1230221297 is about 1071.5055224063.

The spelling of 1230221297 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, two hundred ninety-seven".