213003100221209 has 2 divisors, whose sum is σ = 213003100221210. Its totient is φ = 213003100221208.

The previous prime is 213003100221199. The next prime is 213003100221227. The reversal of 213003100221209 is 902122001300312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165530173417609 + 47472926803600 = 12865853^2 + 6890060^2 .

It is a cyclic number.

It is not a de Polignac number, because 213003100221209 - 2²⁴ = 213003083443993 is a prime.

It is not a weakly prime, because it can be changed into another prime (213003100221259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501550110604 + 106501550110605.

It is an arithmetic number, because the mean of its divisors is an integer number (106501550110605).

Almost surely, 2^{213003100221209} is an apocalyptic number.

It is an amenable number.

213003100221209 is a deficient number, since it is larger than the sum of its proper divisors (1).

213003100221209 is an equidigital number, since it uses as much as digits as its factorization.

213003100221209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 213003100221209 in words is "two hundred thirteen trillion, three billion, one hundred million, two hundred twenty-one thousand, two hundred nine".