12112021101011 has 4 divisors (see below), whose sum is σ = 13043715031872. Its totient is φ = 11180327170152.

The previous prime is 12112021100989. The next prime is 12112021101079. The reversal of 12112021101011 is 11010112021121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112021101011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112021101311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465846965411 + ... + 465846965436.

It is an arithmetic number, because the mean of its divisors is an integer number (3260928757968).

Almost surely, 2^{12112021101011} is an apocalyptic number.

12112021101011 is a deficient number, since it is larger than the sum of its proper divisors (931693930861).

12112021101011 is an equidigital number, since it uses as much as digits as its factorization.

12112021101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931693930860.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12112021101011 its reverse (11010112021121), we get a palindrome (23122133122132).

The spelling of 12112021101011 in words is "twelve trillion, one hundred twelve billion, twenty-one million, one hundred one thousand, eleven".