12022112220121 has 2 divisors, whose sum is σ = 12022112220122. Its totient is φ = 12022112220120.

The previous prime is 12022112220119. The next prime is 12022112220169. The reversal of 12022112220121 is 12102221122021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11182068481600 + 840043738521 = 3343960^2 + 916539^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022112220121 - 2¹ = 12022112220119 is a prime.

Together with 12022112220119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12022112200121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011056110060 + 6011056110061.

It is an arithmetic number, because the mean of its divisors is an integer number (6011056110061).

Almost surely, 2^{12022112220121} is an apocalyptic number.

It is an amenable number.

12022112220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022112220121 is an equidigital number, since it uses as much as digits as its factorization.

12022112220121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12022112220121 its reverse (12102221122021), we get a palindrome (24124333342142).

The spelling of 12022112220121 in words is "twelve trillion, twenty-two billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-one".