12112111021011 has 32 divisors (see below), whose sum is σ = 17356016095488. Its totient is φ = 7485744583680.

The previous prime is 12112111020991. The next prime is 12112111021013. The reversal of 12112111021011 is 11012011121121.

It is not a de Polignac number, because 12112111021011 - 2⁵ = 12112111020979 is a prime.

It is a super-2 number, since 2×12112111021011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12112111021013) 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, 46077031 + ... + 46339151.

It is an arithmetic number, because the mean of its divisors is an integer number (542375502984).

Almost surely, 2^{12112111021011} is an apocalyptic number.

12112111021011 is a deficient number, since it is larger than the sum of its proper divisors (5243905074477).

12112111021011 is a wasteful number, since it uses less digits than its factorization.

12112111021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275731.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12112111021011 its reverse (11012011121121), we get a palindrome (23124122142132).

The spelling of 12112111021011 in words is "twelve trillion, one hundred twelve billion, one hundred eleven million, twenty-one thousand, eleven".