12112122102021 has 12 divisors (see below), whose sum is σ = 17791817777760. Its totient is φ = 7937887930920.

The previous prime is 12112122101987. The next prime is 12112122102023. The reversal of 12112122102021 is 12020122121121.

12112122102021 is a `hidden beast` number, since 121 + 121 + 221 + 0 + 202 + 1 = 666.

It is not a de Polignac number, because 12112122102021 - 2⁶ = 12112122101957 is a prime.

It is a super-3 number, since 3×12112122102021³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12112122101985 and 12112122102003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112122102023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11405010865 + ... + 11405011926.

It is an arithmetic number, because the mean of its divisors is an integer number (1482651481480).

Almost surely, 2^{12112122102021} is an apocalyptic number.

It is an amenable number.

12112122102021 is a deficient number, since it is larger than the sum of its proper divisors (5679695675739).

12112122102021 is a wasteful number, since it uses less digits than its factorization.

12112122102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22810022856 (or 22810022853 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12112122102021 its reverse (12020122121121), we get a palindrome (24132244223142).

The spelling of 12112122102021 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-two million, one hundred two thousand, twenty-one".