12020211569 has 2 divisors, whose sum is σ = 12020211570. Its totient is φ = 12020211568.

The previous prime is 12020211563. The next prime is 12020211611. The reversal of 12020211569 is 96511202021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7489171600 + 4531039969 = 86540^2 + 67313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020211569 is a prime.

It is a super-2 number, since 2×12020211569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12020211563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010105784 + 6010105785.

It is an arithmetic number, because the mean of its divisors is an integer number (6010105785).

Almost surely, 2^12020211569 is an apocalyptic number.

It is an amenable number.

12020211569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020211569 is an equidigital number, since it uses as much as digits as its factorization.

12020211569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 12020211569 in words is "twelve billion, twenty million, two hundred eleven thousand, five hundred sixty-nine".