222218119 has 2 divisors, whose sum is σ = 222218120. Its totient is φ = 222218118.

The previous prime is 222218099. The next prime is 222218149. The reversal of 222218119 is 911812222.

222218119 = T₁₂₁₇₀ + T₁₂₁₇₁ + T₁₂₁₇₂.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222218119 - 2¹³ = 222209927 is a prime.

It is a super-2 number, since 2×222218119² = 98761784823796322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_12238048 and since 222218119 and 12238048 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222218149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111109059 + 111109060.

It is an arithmetic number, because the mean of its divisors is an integer number (111109060).

Almost surely, 2^222218119 is an apocalyptic number.

222218119 is the 12172-nd centered triangular number.

222218119 is a deficient number, since it is larger than the sum of its proper divisors (1).

222218119 is an equidigital number, since it uses as much as digits as its factorization.

222218119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 222218119 is about 14906.9822231061. The cubic root of 222218119 is about 605.7031362296.

The spelling of 222218119 in words is "two hundred twenty-two million, two hundred eighteen thousand, one hundred nineteen".