222382819 has 2 divisors, whose sum is σ = 222382820. Its totient is φ = 222382818.

The previous prime is 222382777. The next prime is 222382829. The reversal of 222382819 is 918283222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222382819 - 2¹¹ = 222380771 is a prime.

It is a super-2 number, since 2×222382819² = 98908236372773522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222382829) 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, 111191409 + 111191410.

It is an arithmetic number, because the mean of its divisors is an integer number (111191410).

Almost surely, 2^222382819 is an apocalyptic number.

222382819 is a deficient number, since it is larger than the sum of its proper divisors (1).

222382819 is an equidigital number, since it uses as much as digits as its factorization.

222382819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 222382819 is about 14912.5054568305. The cubic root of 222382819 is about 605.8527409980.

The spelling of 222382819 in words is "two hundred twenty-two million, three hundred eighty-two thousand, eight hundred nineteen".