4221475222409 has 2 divisors, whose sum is σ = 4221475222410. Its totient is φ = 4221475222408.

The previous prime is 4221475222361. The next prime is 4221475222411. The reversal of 4221475222409 is 9042225741224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2479743078400 + 1741732144009 = 1574720^2 + 1319747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221475222409 is a prime.

Together with 4221475222411, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4221475222409.

It is not a weakly prime, because it can be changed into another prime (4221475224409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110737611204 + 2110737611205.

It is an arithmetic number, because the mean of its divisors is an integer number (2110737611205).

Almost surely, 2^{4221475222409} is an apocalyptic number.

It is an amenable number.

4221475222409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221475222409 is an equidigital number, since it uses as much as digits as its factorization.

4221475222409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 4221475222409 in words is "four trillion, two hundred twenty-one billion, four hundred seventy-five million, two hundred twenty-two thousand, four hundred nine".