4121224221209 has 2 divisors, whose sum is σ = 4121224221210. Its totient is φ = 4121224221208.

The previous prime is 4121224221161. The next prime is 4121224221341. The reversal of 4121224221209 is 9021224221214.

4121224221209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2290994041609 + 1830230179600 = 1513603^2 + 1352860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4121224221209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4121224226209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060612110604 + 2060612110605.

It is an arithmetic number, because the mean of its divisors is an integer number (2060612110605).

Almost surely, 2^{4121224221209} is an apocalyptic number.

It is an amenable number.

4121224221209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121224221209 is an equidigital number, since it uses as much as digits as its factorization.

4121224221209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 4121224221209 in words is "four trillion, one hundred twenty-one billion, two hundred twenty-four million, two hundred twenty-one thousand, two hundred nine".