220021302330209 has 2 divisors, whose sum is σ = 220021302330210. Its totient is φ = 220021302330208.

The previous prime is 220021302330173. The next prime is 220021302330293. The reversal of 220021302330209 is 902033203120022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214867312672609 + 5153989657600 = 14658353^2 + 2270240^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021302330209 - 2⁴⁴ = 202429116285793 is a prime.

It is not a weakly prime, because it can be changed into another prime (220021302300209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010651165104 + 110010651165105.

It is an arithmetic number, because the mean of its divisors is an integer number (110010651165105).

Almost surely, 2^{220021302330209} is an apocalyptic number.

It is an amenable number.

220021302330209 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021302330209 is an equidigital number, since it uses as much as digits as its factorization.

220021302330209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 220021302330209 in words is "two hundred twenty trillion, twenty-one billion, three hundred two million, three hundred thirty thousand, two hundred nine".