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22022111 is a prime number
BaseRepresentation
bin101010000000…
…0011111011111
31112102211122202
41110000133133
521114201421
62104002115
7355120256
oct124003737
945384582
1022022111
11114815a1
12746033b
134740947
142cd379d
151e0010b
hex15007df

22022111 has 2 divisors, whose sum is σ = 22022112. Its totient is φ = 22022110.

The previous prime is 22022101. The next prime is 22022113. The reversal of 22022111 is 11122022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22022111 - 26 = 22022047 is a prime.

Together with 22022113, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022092 and 22022101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011055 + 11011056.

It is an arithmetic number, because the mean of its divisors is an integer number (11011056).

Almost surely, 222022111 is an apocalyptic number.

22022111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022111 is an equidigital number, since it uses as much as digits as its factorization.

22022111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22022111 is about 4692.7722084073. The cubic root of 22022111 is about 280.2977741974.

Adding to 22022111 its reverse (11122022), we get a palindrome (33144133).

It can be divided in two parts, 22022 and 111, that multiplied together give a palindrome (2444442).

The spelling of 22022111 in words is "twenty-two million, twenty-two thousand, one hundred eleven".