12020020212011 has 48 divisors (see below), whose sum is σ = 14203330479360. Its totient is φ = 10141611480000.

The previous prime is 12020020211999. The next prime is 12020020212073. The reversal of 12020020212011 is 11021202002021.

It is not a de Polignac number, because 12020020212011 - 2²² = 12020016017707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020020812011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 687202976 + ... + 687220466.

It is an arithmetic number, because the mean of its divisors is an integer number (295902718320).

Almost surely, 2^{12020020212011} is an apocalyptic number.

12020020212011 is a deficient number, since it is larger than the sum of its proper divisors (2183310267349).

12020020212011 is a wasteful number, since it uses less digits than its factorization.

12020020212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18496 (or 18489 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12020020212011 its reverse (11021202002021), we get a palindrome (23041222214032).

The spelling of 12020020212011 in words is "twelve trillion, twenty billion, twenty million, two hundred twelve thousand, eleven".