12112220131131 has 8 divisors (see below), whose sum is σ = 16149665910784. Its totient is φ = 8074793886120.

The previous prime is 12112220131129. The next prime is 12112220131153. The reversal of 12112220131131 is 13113102221121.

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

It is not a de Polignac number, because 12112220131131 - 2¹ = 12112220131129 is a prime.

It is a super-2 number, since 2×12112220131131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112220131098 and 12112220131107.

It is not an unprimeable number, because it can be changed into a prime (12112220131331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3369871 + ... + 5964936.

It is an arithmetic number, because the mean of its divisors is an integer number (2018708238848).

Almost surely, 2^{12112220131131} is an apocalyptic number.

12112220131131 is a deficient number, since it is larger than the sum of its proper divisors (4037445779653).

12112220131131 is an equidigital number, since it uses as much as digits as its factorization.

12112220131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9767321.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12112220131131 its reverse (13113102221121), we get a palindrome (25225322352252).

The spelling of 12112220131131 in words is "twelve trillion, one hundred twelve billion, two hundred twenty million, one hundred thirty-one thousand, one hundred thirty-one".