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2210011081 is a prime number
BaseRepresentation
bin1000001110111010…
…0001011111001001
312201000112012021021
42003232201133021
514011230323311
61003144112441
7105523532665
oct20356413711
95630465237
102210011081
11a34548043
12518165721
13292b28285
1416d7258a5
15ce048171
hex83ba17c9

2210011081 has 2 divisors, whose sum is σ = 2210011082. Its totient is φ = 2210011080.

The previous prime is 2210011057. The next prime is 2210011109. The reversal of 2210011081 is 1801100122.

2210011081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2203457481 + 6553600 = 46941^2 + 2560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210011081 - 211 = 2210009033 is a prime.

It is a super-3 number, since 3×22100110813 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2210012081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105005540 + 1105005541.

It is an arithmetic number, because the mean of its divisors is an integer number (1105005541).

Almost surely, 22210011081 is an apocalyptic number.

It is an amenable number.

2210011081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210011081 is an equidigital number, since it uses as much as digits as its factorization.

2210011081 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 16.

The square root of 2210011081 is about 47010.7549503302. The cubic root of 2210011081 is about 1302.5612387411.

The spelling of 2210011081 in words is "two billion, two hundred ten million, eleven thousand, eighty-one".