12112110221222 has 8 divisors (see below), whose sum is σ = 19819816725672. Its totient is φ = 5505504646000.

The previous prime is 12112110221131. The next prime is 12112110221261. The reversal of 12112110221222 is 22212201121121.

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

It is a super-2 number, since 2×12112110221222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12112110221194 and 12112110221203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 275275232279 + ... + 275275232322.

It is an arithmetic number, because the mean of its divisors is an integer number (2477477090709).

Almost surely, 2^{12112110221222} is an apocalyptic number.

12112110221222 is a deficient number, since it is larger than the sum of its proper divisors (7707706504450).

12112110221222 is a wasteful number, since it uses less digits than its factorization.

12112110221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550550464614.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12112110221222 its reverse (22212201121121), we get a palindrome (34324311342343).

The spelling of 12112110221222 in words is "twelve trillion, one hundred twelve billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".