2020220120209 has 4 divisors (see below), whose sum is σ = 2020251453220. Its totient is φ = 2020188787200.

The previous prime is 2020220120179. The next prime is 2020220120239. The reversal of 2020220120209 is 9020210220202.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2020220120179) and next prime (2020220120239).

It can be written as a sum of positive squares in 2 ways, for example, as 1857591814225 + 162628305984 = 1362935^2 + 403272^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020220120209 - 2¹³ = 2020220112017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020220120209.

It is not an unprimeable number, because it can be changed into a prime (2020220120239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15569592 + ... + 15698809.

It is an arithmetic number, because the mean of its divisors is an integer number (505062863305).

Almost surely, 2^{2020220120209} is an apocalyptic number.

It is an amenable number.

2020220120209 is a deficient number, since it is larger than the sum of its proper divisors (31333011).

2020220120209 is an equidigital number, since it uses as much as digits as its factorization.

2020220120209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31333010.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 2020220120209 in words is "two trillion, twenty billion, two hundred twenty million, one hundred twenty thousand, two hundred nine".