12112112222001 has 32 divisors (see below), whose sum is σ = 19575650188800. Its totient is φ = 7340479327440.

The previous prime is 12112112221991. The next prime is 12112112222039. The reversal of 12112112222001 is 10022221121121.

12112112222001 is a `hidden beast` number, since 1 + 211 + 211 + 22 + 220 + 0 + 1 = 666.

It is not a de Polignac number, because 12112112222001 - 2¹⁷ = 12112112090929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112112222101) 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 31 ways as a sum of consecutive naturals, for example, 11093370 + ... + 12136188.

It is an arithmetic number, because the mean of its divisors is an integer number (611739068400).

Almost surely, 2^{12112112222001} is an apocalyptic number.

12112112222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112112222001 is a deficient number, since it is larger than the sum of its proper divisors (7463537966799).

12112112222001 is a wasteful number, since it uses less digits than its factorization.

12112112222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081946 (or 1081940 counting only the distinct ones).

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

Adding to 12112112222001 its reverse (10022221121121), we get a palindrome (22134333343122).

The spelling of 12112112222001 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, one".