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22102211 is a prime number
BaseRepresentation
bin101010001010…
…0000011000011
31112120220112102
41110110003003
521124232321
62105421015
7355602635
oct124240303
945526472
1022102211
111152679a
12749a76b
13476b241
142d14a55
151e18c0b
hex15140c3

22102211 has 2 divisors, whose sum is σ = 22102212. Its totient is φ = 22102210.

The previous prime is 22102169. The next prime is 22102217. The reversal of 22102211 is 11220122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22102211 - 214 = 22085827 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 22102192 and 22102201.

It is not a weakly prime, because it can be changed into another prime (22102217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051105 + 11051106.

It is an arithmetic number, because the mean of its divisors is an integer number (11051106).

Almost surely, 222102211 is an apocalyptic number.

22102211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102211 is an equidigital number, since it uses as much as digits as its factorization.

22102211 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 22102211 is about 4701.2988630803. The cubic root of 22102211 is about 280.6372010211.

Adding to 22102211 its reverse (11220122), we get a palindrome (33322333).

The spelling of 22102211 in words is "twenty-two million, one hundred two thousand, two hundred eleven".