1314222421 has 2 divisors, whose sum is σ = 1314222422. Its totient is φ = 1314222420.

The previous prime is 1314222407. The next prime is 1314222439. The reversal of 1314222421 is 1242224131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841812196 + 472410225 = 29014^2 + 21735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314222421 - 2¹¹ = 1314220373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1314222392 and 1314222401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314222121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657111210 + 657111211.

It is an arithmetic number, because the mean of its divisors is an integer number (657111211).

Almost surely, 2^1314222421 is an apocalyptic number.

It is an amenable number.

1314222421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314222421 is an equidigital number, since it uses as much as digits as its factorization.

1314222421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 22.

The square root of 1314222421 is about 36252.2057397891. The cubic root of 1314222421 is about 1095.3585201062.

Adding to 1314222421 its reverse (1242224131), we get a palindrome (2556446552).

The spelling of 1314222421 in words is "one billion, three hundred fourteen million, two hundred twenty-two thousand, four hundred twenty-one".