12012020211019 has 4 divisors (see below), whose sum is σ = 12291369518296. Its totient is φ = 11732670903744.

The previous prime is 12012020210959. The next prime is 12012020211031. The reversal of 12012020211019 is 91011202021021.

12012020211019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12012020211019 - 2¹¹ = 12012020208971 is a prime.

It is a super-2 number, since 2×12012020211019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012020211619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139674653574 + ... + 139674653659.

It is an arithmetic number, because the mean of its divisors is an integer number (3072842379574).

Almost surely, 2^{12012020211019} is an apocalyptic number.

12012020211019 is a deficient number, since it is larger than the sum of its proper divisors (279349307277).

12012020211019 is an equidigital number, since it uses as much as digits as its factorization.

12012020211019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279349307276.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 12012020211019 in words is "twelve trillion, twelve billion, twenty million, two hundred eleven thousand, nineteen".