10221347 has 2 divisors, whose sum is σ = 10221348. Its totient is φ = 10221346.

The previous prime is 10221293. The next prime is 10221349. The reversal of 10221347 is 74312201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221347 - 2⁶ = 10221283 is a prime.

Together with 10221349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10221349) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110673 + 5110674.

It is an arithmetic number, because the mean of its divisors is an integer number (5110674).

Almost surely, 2^10221347 is an apocalyptic number.

10221347 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221347 is an equidigital number, since it uses as much as digits as its factorization.

10221347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 10221347 is about 3197.0841402753. The cubic root of 10221347 is about 217.0214749359.

Adding to 10221347 its reverse (74312201), we get a palindrome (84533548).

The spelling of 10221347 in words is "ten million, two hundred twenty-one thousand, three hundred forty-seven".