1412340221 has 2 divisors, whose sum is σ = 1412340222. Its totient is φ = 1412340220.

The previous prime is 1412340217. The next prime is 1412340247. The reversal of 1412340221 is 1220432141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1407300196 + 5040025 = 37514^2 + 2245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1412340221 - 2² = 1412340217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1412340193 and 1412340202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1412340121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706170110 + 706170111.

It is an arithmetic number, because the mean of its divisors is an integer number (706170111).

Almost surely, 2^1412340221 is an apocalyptic number.

It is an amenable number.

1412340221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1412340221 is an equidigital number, since it uses as much as digits as its factorization.

1412340221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1412340221 is about 37581.1152176196. The cubic root of 1412340221 is about 1121.9662052939.

Adding to 1412340221 its reverse (1220432141), we get a palindrome (2632772362).

The spelling of 1412340221 in words is "one billion, four hundred twelve million, three hundred forty thousand, two hundred twenty-one".