12020120209969 has 2 divisors, whose sum is σ = 12020120209970. Its totient is φ = 12020120209968.

The previous prime is 12020120209967. The next prime is 12020120210023. The reversal of 12020120209969 is 96990202102021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8934957939600 + 3085162270369 = 2989140^2 + 1756463^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020120209969 - 2¹ = 12020120209967 is a prime.

It is a super-2 number, since 2×12020120209969² (a number of 27 digits) contains 22 as substring.

Together with 12020120209967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12020120209967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010060104984 + 6010060104985.

It is an arithmetic number, because the mean of its divisors is an integer number (6010060104985).

Almost surely, 2^{12020120209969} is an apocalyptic number.

It is an amenable number.

12020120209969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020120209969 is an equidigital number, since it uses as much as digits as its factorization.

12020120209969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 12020120209969 in words is "twelve trillion, twenty billion, one hundred twenty million, two hundred nine thousand, nine hundred sixty-nine".