12232221201121 has 2 divisors, whose sum is σ = 12232221201122. Its totient is φ = 12232221201120.

The previous prime is 12232221201119. The next prime is 12232221201133. The reversal of 12232221201121 is 12110212223221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11535288420496 + 696932780625 = 3396364^2 + 834825^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232221201121 - 2¹ = 12232221201119 is a prime.

Together with 12232221201119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12232221201092 and 12232221201101.

It is not a weakly prime, because it can be changed into another prime (12232221231121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116110600560 + 6116110600561.

It is an arithmetic number, because the mean of its divisors is an integer number (6116110600561).

Almost surely, 2^{12232221201121} is an apocalyptic number.

It is an amenable number.

12232221201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232221201121 is an equidigital number, since it uses as much as digits as its factorization.

12232221201121 is an evil number, because the sum of its binary digits is even.

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

Adding to 12232221201121 its reverse (12110212223221), we get a palindrome (24342433424342).

The spelling of 12232221201121 in words is "twelve trillion, two hundred thirty-two billion, two hundred twenty-one million, two hundred one thousand, one hundred twenty-one".