220120344063209 has 2 divisors, whose sum is σ = 220120344063210. Its totient is φ = 220120344063208.

The previous prime is 220120344063187. The next prime is 220120344063251. The reversal of 220120344063209 is 902360443021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120717948557584 + 99402395505625 = 10987172^2 + 9970075^2 .

It is a cyclic number.

It is not a de Polignac number, because 220120344063209 - 2⁸ = 220120344062953 is a prime.

It is not a weakly prime, because it can be changed into another prime (220120344060209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060172031604 + 110060172031605.

It is an arithmetic number, because the mean of its divisors is an integer number (110060172031605).

Almost surely, 2^{220120344063209} is an apocalyptic number.

It is an amenable number.

220120344063209 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120344063209 is an equidigital number, since it uses as much as digits as its factorization.

220120344063209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 220120344063209 in words is "two hundred twenty trillion, one hundred twenty billion, three hundred forty-four million, sixty-three thousand, two hundred nine".