1302014221 has 2 divisors, whose sum is σ = 1302014222. Its totient is φ = 1302014220.

The previous prime is 1302014209. The next prime is 1302014227. The reversal of 1302014221 is 1224102031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106294121 + 195720100 = 33261^2 + 13990^2 .

It is an emirp because it is prime and its reverse (1224102031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1302014221 - 2⁷ = 1302014093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302014195 and 1302014204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302014227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651007110 + 651007111.

It is an arithmetic number, because the mean of its divisors is an integer number (651007111).

Almost surely, 2^1302014221 is an apocalyptic number.

It is an amenable number.

1302014221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302014221 is an equidigital number, since it uses as much as digits as its factorization.

1302014221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1302014221 is about 36083.4341630616. The cubic root of 1302014221 is about 1091.9562605196.

Adding to 1302014221 its reverse (1224102031), we get a palindrome (2526116252).

The spelling of 1302014221 in words is "one billion, three hundred two million, fourteen thousand, two hundred twenty-one".