12020020010111 has 32 divisors (see below), whose sum is σ = 12865168673280. Its totient is φ = 11205473089536.

The previous prime is 12020020010041. The next prime is 12020020010171. The reversal of 12020020010111 is 11101002002021.

It is a de Polignac number, because none of the positive numbers 2^k-12020020010111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020020010092 and 12020020010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020010171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546925355 + ... + 546947331.

It is an arithmetic number, because the mean of its divisors is an integer number (402036521040).

Almost surely, 2^{12020020010111} is an apocalyptic number.

12020020010111 is a deficient number, since it is larger than the sum of its proper divisors (845148663169).

12020020010111 is a wasteful number, since it uses less digits than its factorization.

12020020010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25823.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12020020010111 its reverse (11101002002021), we get a palindrome (23121022012132).

The spelling of 12020020010111 in words is "twelve trillion, twenty billion, twenty million, ten thousand, one hundred eleven".