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BaseRepresentation
bin101011011010101
31010111022
411123111
51202404
6250525
7121544
oct53325
933438
1022229
1115779
1210a45
13a16c
14815b
1568be
hex56d5

22229 has 2 divisors, whose sum is σ = 22230. Its totient is φ = 22228.

The previous prime is 22193. The next prime is 22247. The reversal of 22229 is 92222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16900 + 5329 = 130^2 + 73^2 .

It is a cyclic number.

It is not a de Polignac number, because 22229 - 212 = 18133 is a prime.

It is a plaindrome in base 10, base 11 and base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11114 + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (11115).

222229 is an apocalyptic number.

It is an amenable number.

22229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22229 is an equidigital number, since it uses as much as digits as its factorization.

22229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 22229 is about 149.0939301246. The cubic root of 22229 is about 28.1172801858.

The spelling of 22229 in words is "twenty-two thousand, two hundred twenty-nine".