3421214121209 has 2 divisors, whose sum is σ = 3421214121210. Its totient is φ = 3421214121208.

The previous prime is 3421214121187. The next prime is 3421214121263. The reversal of 3421214121209 is 9021214121243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3419170810000 + 2043311209 = 1849100^2 + 45203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3421214121209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3421214121289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710607060604 + 1710607060605.

It is an arithmetic number, because the mean of its divisors is an integer number (1710607060605).

Almost surely, 2^{3421214121209} is an apocalyptic number.

It is an amenable number.

3421214121209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421214121209 is an equidigital number, since it uses as much as digits as its factorization.

3421214121209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 3421214121209 in words is "three trillion, four hundred twenty-one billion, two hundred fourteen million, one hundred twenty-one thousand, two hundred nine".