1302214421 has 4 divisors (see below), whose sum is σ = 1302921312. Its totient is φ = 1301507532.

The previous prime is 1302214393. The next prime is 1302214453. The reversal of 1302214421 is 1244122031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1302214421 - 2³⁰ = 228472597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1302214393 and 1302214402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302214481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350675 + ... + 354368.

It is an arithmetic number, because the mean of its divisors is an integer number (325730328).

Almost surely, 2^1302214421 is an apocalyptic number.

It is an amenable number.

1302214421 is a deficient number, since it is larger than the sum of its proper divisors (706891).

1302214421 is an equidigital number, since it uses as much as digits as its factorization.

1302214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706890.

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

The square root of 1302214421 is about 36086.2081826284. The cubic root of 1302214421 is about 1092.0122246906.

Adding to 1302214421 its reverse (1244122031), we get a palindrome (2546336452).

The spelling of 1302214421 in words is "one billion, three hundred two million, two hundred fourteen thousand, four hundred twenty-one".