222232321121 has 2 divisors, whose sum is σ = 222232321122. Its totient is φ = 222232321120.

The previous prime is 222232321049. The next prime is 222232321141. The reversal of 222232321121 is 121123232222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135101088721 + 87131232400 = 367561^2 + 295180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222232321121 is a prime.

It is not a weakly prime, because it can be changed into another prime (222232321141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111116160560 + 111116160561.

It is an arithmetic number, because the mean of its divisors is an integer number (111116160561).

Almost surely, 2^222232321121 is an apocalyptic number.

It is an amenable number.

222232321121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222232321121 is an equidigital number, since it uses as much as digits as its factorization.

222232321121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

Adding to 222232321121 its reverse (121123232222), we get a palindrome (343355553343).

The spelling of 222232321121 in words is "two hundred twenty-two billion, two hundred thirty-two million, three hundred twenty-one thousand, one hundred twenty-one".