12112011012021 has 8 divisors (see below), whose sum is σ = 16156199679264. Its totient is φ = 8071248176400.

The previous prime is 12112011011999. The next prime is 12112011012109. The reversal of 12112011012021 is 12021011021121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12112011012021 - 2⁶ = 12112011011957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112011012421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856449655 + ... + 856463796.

It is an arithmetic number, because the mean of its divisors is an integer number (2019524959908).

Almost surely, 2^{12112011012021} is an apocalyptic number.

It is an amenable number.

12112011012021 is a deficient number, since it is larger than the sum of its proper divisors (4044188667243).

12112011012021 is a wasteful number, since it uses less digits than its factorization.

12112011012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712915811.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12112011012021 its reverse (12021011021121), we get a palindrome (24133022033142).

It can be divided in two parts, 1211201 and 1012021, that added together give a palindrome (2223222).

The spelling of 12112011012021 in words is "twelve trillion, one hundred twelve billion, eleven million, twelve thousand, twenty-one".