12022121221121 has 8 divisors (see below), whose sum is σ = 13115821680288. Its totient is φ = 10928550820000.

The previous prime is 12022121221073. The next prime is 12022121221139. The reversal of 12022121221121 is 12112212122021.

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

It is a de Polignac number, because none of the positive numbers 2^k-12022121221121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12022121221093 and 12022121221102.

It is not an unprimeable number, because it can be changed into a prime (12022121221151) 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, 32321180 + ... + 32691021.

It is an arithmetic number, because the mean of its divisors is an integer number (1639477710036).

Almost surely, 2^{12022121221121} is an apocalyptic number.

12022121221121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12022121221121 is a deficient number, since it is larger than the sum of its proper divisors (1093700459167).

12022121221121 is a wasteful number, since it uses less digits than its factorization.

12022121221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65029023.

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

Adding to 12022121221121 its reverse (12112212122021), we get a palindrome (24134333343142).

The spelling of 12022121221121 in words is "twelve trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-one".