222234121 has 2 divisors, whose sum is σ = 222234122. Its totient is φ = 222234120.

The previous prime is 222234107. The next prime is 222234143. The reversal of 222234121 is 121432222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163558521 + 58675600 = 12789^2 + 7660^2 .

It is a cyclic number.

It is not a de Polignac number, because 222234121 - 2⁷ = 222233993 is a prime.

It is not a weakly prime, because it can be changed into another prime (222234161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111117060 + 111117061.

It is an arithmetic number, because the mean of its divisors is an integer number (111117061).

Almost surely, 2^222234121 is an apocalyptic number.

It is an amenable number.

222234121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222234121 is an equidigital number, since it uses as much as digits as its factorization.

222234121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 19.

The square root of 222234121 is about 14907.5189417958. The cubic root of 222234121 is about 605.7176748415.

Adding to 222234121 its reverse (121432222), we get a palindrome (343666343).

The spelling of 222234121 in words is "two hundred twenty-two million, two hundred thirty-four thousand, one hundred twenty-one".