12022222122121 has 2 divisors, whose sum is σ = 12022222122122. Its totient is φ = 12022222122120.

The previous prime is 12022222122101. The next prime is 12022222122187. The reversal of 12022222122121 is 12122122222021.

12022222122121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8091265585225 + 3930956536896 = 2844515^2 + 1982664^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022222122121 - 2¹⁹ = 12022221597833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12022222122092 and 12022222122101.

It is not a weakly prime, because it can be changed into another prime (12022222122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011111061060 + 6011111061061.

It is an arithmetic number, because the mean of its divisors is an integer number (6011111061061).

Almost surely, 2^{12022222122121} is an apocalyptic number.

It is an amenable number.

12022222122121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022222122121 is an equidigital number, since it uses as much as digits as its factorization.

12022222122121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12022222122121 its reverse (12122122222021), we get a palindrome (24144344344142).

The spelling of 12022222122121 in words is "twelve trillion, twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".