222040123 has 2 divisors, whose sum is σ = 222040124. Its totient is φ = 222040122.

The previous prime is 222040109. The next prime is 222040127. The reversal of 222040123 is 321040222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222040123 - 2²⁵ = 188485691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222040097 and 222040106.

It is not a weakly prime, because it can be changed into another prime (222040127) 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, 111020061 + 111020062.

It is an arithmetic number, because the mean of its divisors is an integer number (111020062).

Almost surely, 2^222040123 is an apocalyptic number.

222040123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222040123 is an equidigital number, since it uses as much as digits as its factorization.

222040123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222040123 is about 14901.0108046401. The cubic root of 222040123 is about 605.5413709415.

Adding to 222040123 its reverse (321040222), we get a palindrome (543080345).

Subtracting 222040123 from its reverse (321040222), we obtain a palindrome (99000099).

The spelling of 222040123 in words is "two hundred twenty-two million, forty thousand, one hundred twenty-three".