12112022221123 has 4 divisors (see below), whose sum is σ = 13213115150328. Its totient is φ = 11010929291920.

The previous prime is 12112022221073. The next prime is 12112022221133. The reversal of 12112022221123 is 32112222021121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12112022221123 - 2⁹ = 12112022220611 is a prime.

It is a super-2 number, since 2×12112022221123² (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 = 12112022221094 and 12112022221103.

It is not an unprimeable number, because it can be changed into a prime (12112022221133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550546464586 + ... + 550546464607.

It is an arithmetic number, because the mean of its divisors is an integer number (3303278787582).

Almost surely, 2^{12112022221123} is an apocalyptic number.

12112022221123 is a deficient number, since it is larger than the sum of its proper divisors (1101092929205).

12112022221123 is a wasteful number, since it uses less digits than its factorization.

12112022221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101092929204.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12112022221123 its reverse (32112222021121), we get a palindrome (44224244242244).

The spelling of 12112022221123 in words is "twelve trillion, one hundred twelve billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-three".