12111022221011 has 16 divisors (see below), whose sum is σ = 13950402625536. Its totient is φ = 10298953326816.

The previous prime is 12111022221007. The next prime is 12111022221047. The reversal of 12111022221011 is 11012222011121.

12111022221011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12111022221011 - 2² = 12111022221007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111022221911) 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, 77973950 + ... + 78129116.

It is an arithmetic number, because the mean of its divisors is an integer number (871900164096).

Almost surely, 2^{12111022221011} is an apocalyptic number.

12111022221011 is a deficient number, since it is larger than the sum of its proper divisors (1839380404525).

12111022221011 is a wasteful number, since it uses less digits than its factorization.

12111022221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243098.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12111022221011 its reverse (11012222011121), we get a palindrome (23123244232132).

The spelling of 12111022221011 in words is "twelve trillion, one hundred eleven billion, twenty-two million, two hundred twenty-one thousand, eleven".