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2212219 is a prime number
BaseRepresentation
bin1000011100000101111011
311011101121001
420130011323
51031242334
6115225431
724542422
oct10340573
94141531
102212219
111281089
128a8277
135c5c09
144182b9
152da714
hex21c17b

2212219 has 2 divisors, whose sum is σ = 2212220. Its totient is φ = 2212218.

The previous prime is 2212187. The next prime is 2212229. The reversal of 2212219 is 9122122.

2212219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212219 - 25 = 2212187 is a prime.

It is a super-2 number, since 2×22122192 = 9787825807922, which contains 22 as substring.

2212219 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2212196 and 2212205.

It is not a weakly prime, because it can be changed into another prime (2212229) 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, 1106109 + 1106110.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110).

22212219 is an apocalyptic number.

2212219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212219 is an equidigital number, since it uses as much as digits as its factorization.

2212219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 2212219 is about 1487.3530179483. The cubic root of 2212219 is about 130.2994870428.

Subtracting 2212219 from its reverse (9122122), we obtain a triangular number (6909903 = T3717).

The spelling of 2212219 in words is "two million, two hundred twelve thousand, two hundred nineteen".