12000212011111 has 16 divisors (see below), whose sum is σ = 12765296567520. Its totient is φ = 11241729172480.

The previous prime is 12000212011057. The next prime is 12000212011129. The reversal of 12000212011111 is 11111021200021.

It is a happy number.

12000212011111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12000212011111 - 2¹⁷ = 12000211880039 is a prime.

It is a super-2 number, since 2×12000212011111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000212011091 and 12000212011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000212011181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15003771 + ... + 15783331.

It is an arithmetic number, because the mean of its divisors is an integer number (797831035470).

Almost surely, 2^{12000212011111} is an apocalyptic number.

12000212011111 is a deficient number, since it is larger than the sum of its proper divisors (765084556409).

12000212011111 is a wasteful number, since it uses less digits than its factorization.

12000212011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783794.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12000212011111 its reverse (11111021200021), we get a palindrome (23111233211132).

The spelling of 12000212011111 in words is "twelve trillion, two hundred twelve million, eleven thousand, one hundred eleven".