222144443 has 2 divisors, whose sum is σ = 222144444. Its totient is φ = 222144442.

The previous prime is 222144431. The next prime is 222144451. The reversal of 222144443 is 344441222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222144443 - 2⁸ = 222144187 is a prime.

It is not a weakly prime, because it can be changed into another prime (222144413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111072221 + 111072222.

It is an arithmetic number, because the mean of its divisors is an integer number (111072222).

Almost surely, 2^222144443 is an apocalyptic number.

222144443 is a deficient number, since it is larger than the sum of its proper divisors (1).

222144443 is an equidigital number, since it uses as much as digits as its factorization.

222144443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 26.

The square root of 222144443 is about 14904.5108272630. The cubic root of 222144443 is about 605.6361889179.

Adding to 222144443 its reverse (344441222), we get a palindrome (566585665).

It can be divided in two parts, 2221 and 44443, that added together give a palindrome (46664).

The spelling of 222144443 in words is "two hundred twenty-two million, one hundred forty-four thousand, four hundred forty-three".