220219797569 has 2 divisors, whose sum is σ = 220219797570. Its totient is φ = 220219797568.

The previous prime is 220219797557. The next prime is 220219797583. The reversal of 220219797569 is 965797912022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178404864400 + 41814933169 = 422380^2 + 204487^2 .

It is a cyclic number.

It is not a de Polignac number, because 220219797569 - 2⁸ = 220219797313 is a prime.

It is a super-2 number, since 2×220219797569² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (220219797599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110109898784 + 110109898785.

It is an arithmetic number, because the mean of its divisors is an integer number (110109898785).

Almost surely, 2^220219797569 is an apocalyptic number.

It is an amenable number.

220219797569 is a deficient number, since it is larger than the sum of its proper divisors (1).

220219797569 is an equidigital number, since it uses as much as digits as its factorization.

220219797569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 59.

The spelling of 220219797569 in words is "two hundred twenty billion, two hundred nineteen million, seven hundred ninety-seven thousand, five hundred sixty-nine".