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222120211 is a prime number
BaseRepresentation
bin11010011110101…
…00100100010011
3120110221212122111
431033110210103
5423330321321
634012450151
75334663535
oct1517244423
9513855574
10222120211
11104421225
1262479957
13370307a1
14216dd855
15147785e1
hexd3d4913

222120211 has 2 divisors, whose sum is σ = 222120212. Its totient is φ = 222120210.

The previous prime is 222120179. The next prime is 222120233. The reversal of 222120211 is 112021222.

It is a happy number.

222120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222120211 - 25 = 222120179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222120191 and 222120200.

It is not a weakly prime, because it can be changed into another prime (222120281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060105 + 111060106.

It is an arithmetic number, because the mean of its divisors is an integer number (111060106).

Almost surely, 2222120211 is an apocalyptic number.

222120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120211 is an equidigital number, since it uses as much as digits as its factorization.

222120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 222120211 is about 14903.6978968308. The cubic root of 222120211 is about 605.6141667453.

Adding to 222120211 its reverse (112021222), we get a palindrome (334141433).

The spelling of 222120211 in words is "two hundred twenty-two million, one hundred twenty thousand, two hundred eleven".