222919 has 2 divisors, whose sum is σ = 222920. Its totient is φ = 222918.

The previous prime is 222913. The next prime is 222931. The reversal of 222919 is 919222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222919 - 2⁷ = 222791 is a prime.

It is a super-2 number, since 2×222919² = 99385761122, which contains 22 as substring.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 222893 and 222902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111459 + 111460.

It is an arithmetic number, because the mean of its divisors is an integer number (111460).

2²²²⁹¹⁹ is an apocalyptic number.

222919 is a deficient number, since it is larger than the sum of its proper divisors (1).

222919 is an equidigital number, since it uses as much as digits as its factorization.

222919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 222919 is about 472.1429868165. The cubic root of 222919 is about 60.6339268394.

The spelling of 222919 in words is "two hundred twenty-two thousand, nine hundred nineteen".