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2101120211 is a prime number
BaseRepresentation
bin111110100111100…
…1000110011010011
312102102121222002002
41331033020303103
513300341321321
6544254144215
7103032140621
oct17517106323
95372558062
102101120211
11989033793
124a77b206b
132763c09c8
1415d09c511
15c46d920b
hex7d3c8cd3

2101120211 has 2 divisors, whose sum is σ = 2101120212. Its totient is φ = 2101120210.

The previous prime is 2101120129. The next prime is 2101120243. The reversal of 2101120211 is 1120211012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101120211 - 214 = 2101103827 is a prime.

It is a super-2 number, since 2×21011202112 = 8829412282145369042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101120192 and 2101120201.

It is not a weakly prime, because it can be changed into another prime (2101129211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050560105 + 1050560106.

It is an arithmetic number, because the mean of its divisors is an integer number (1050560106).

Almost surely, 22101120211 is an apocalyptic number.

2101120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101120211 is an equidigital number, since it uses as much as digits as its factorization.

2101120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2101120211 is about 45837.9778240707. The cubic root of 2101120211 is about 1280.8068259191.

Adding to 2101120211 its reverse (1120211012), we get a palindrome (3221331223).

The spelling of 2101120211 in words is "two billion, one hundred one million, one hundred twenty thousand, two hundred eleven".