1314822221 has 2 divisors, whose sum is σ = 1314822222. Its totient is φ = 1314822220.

The previous prime is 1314822169. The next prime is 1314822263. The reversal of 1314822221 is 1222284131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965655625 + 349166596 = 31075^2 + 18686^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314822221 - 2¹⁸ = 1314560077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314822281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657411110 + 657411111.

It is an arithmetic number, because the mean of its divisors is an integer number (657411111).

Almost surely, 2^1314822221 is an apocalyptic number.

It is an amenable number.

1314822221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314822221 is an equidigital number, since it uses as much as digits as its factorization.

1314822221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 26.

The square root of 1314822221 is about 36260.4773961954. The cubic root of 1314822221 is about 1095.5251322174.

The spelling of 1314822221 in words is "one billion, three hundred fourteen million, eight hundred twenty-two thousand, two hundred twenty-one".