561222121222219 has 2 divisors, whose sum is σ = 561222121222220. Its totient is φ = 561222121222218.

The previous prime is 561222121222163. The next prime is 561222121222229. The reversal of 561222121222219 is 912222121222165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561222121222219 - 2¹⁵ = 561222121189451 is a prime.

It is a super-2 number, since 2×561222121222219² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (561222121222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280611060611109 + 280611060611110.

It is an arithmetic number, because the mean of its divisors is an integer number (280611060611110).

Almost surely, 2^{561222121222219} is an apocalyptic number.

561222121222219 is a deficient number, since it is larger than the sum of its proper divisors (1).

561222121222219 is an equidigital number, since it uses as much as digits as its factorization.

561222121222219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The spelling of 561222121222219 in words is "five hundred sixty-one trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred nineteen".