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BaseRepresentation
bin101010001101…
…1010111111111
31112122102200222
41110123113333
521131212343
62110211555
7356056301
oct124332777
945572628
1022132223
11115472a3
1274b3bbb
13477bab9
142d21971
151e22a68
hex151b5ff

22132223 has 2 divisors, whose sum is σ = 22132224. Its totient is φ = 22132222.

The previous prime is 22132219. The next prime is 22132237. The reversal of 22132223 is 32223122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22132223 - 22 = 22132219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131223) 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, 11066111 + 11066112.

It is an arithmetic number, because the mean of its divisors is an integer number (11066112).

Almost surely, 222132223 is an apocalyptic number.

22132223 is a deficient number, since it is larger than the sum of its proper divisors (1).

22132223 is an equidigital number, since it uses as much as digits as its factorization.

22132223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 17.

The square root of 22132223 is about 4704.4896641400. The cubic root of 22132223 is about 280.7641668154.

Adding to 22132223 its reverse (32223122), we get a palindrome (54355345).

The spelling of 22132223 in words is "twenty-two million, one hundred thirty-two thousand, two hundred twenty-three".