12022212121121 has 8 divisors (see below), whose sum is σ = 12360881234688. Its totient is φ = 11685707028000.

The previous prime is 12022212121109. The next prime is 12022212121147. The reversal of 12022212121121 is 12112121222021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12022212121121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022212121093 and 12022212121102.

It is not an unprimeable number, because it can be changed into a prime (12022212121421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540993845 + ... + 541016066.

It is an arithmetic number, because the mean of its divisors is an integer number (1545110154336).

Almost surely, 2^{12022212121121} is an apocalyptic number.

It is an amenable number.

12022212121121 is a deficient number, since it is larger than the sum of its proper divisors (338669113567).

12022212121121 is a wasteful number, since it uses less digits than its factorization.

12022212121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082010223.

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

Adding to 12022212121121 its reverse (12112121222021), we get a palindrome (24134333343142).

The spelling of 12022212121121 in words is "twelve trillion, twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-one".