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2221342223 is a prime number
BaseRepresentation
bin1000010001100110…
…1111111000001111
312201210211212200012
42010121233320033
514022130422343
61004231023435
7106022045252
oct20431577017
95653755605
102221342223
11a3a987321
1251bb0ab7b
132952949a9
14171035099
15d0035718
hex8466fe0f

2221342223 has 2 divisors, whose sum is σ = 2221342224. Its totient is φ = 2221342222.

The previous prime is 2221342183. The next prime is 2221342243. The reversal of 2221342223 is 3222431222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221342223 - 26 = 2221342159 is a prime.

It is a super-2 number, since 2×22213422232 = 9868722543365163458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221342243) 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, 1110671111 + 1110671112.

It is an arithmetic number, because the mean of its divisors is an integer number (1110671112).

Almost surely, 22221342223 is an apocalyptic number.

2221342223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221342223 is an equidigital number, since it uses as much as digits as its factorization.

2221342223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 2221342223 is about 47131.1173536126. The cubic root of 2221342223 is about 1304.7836036231.

Adding to 2221342223 its reverse (3222431222), we get a palindrome (5443773445).

The spelling of 2221342223 in words is "two billion, two hundred twenty-one million, three hundred forty-two thousand, two hundred twenty-three".