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2020220117 is a prime number
BaseRepresentation
bin111100001101010…
…0001110011010101
312012210101211000022
41320122201303111
513114134020432
6532244154525
7101030405366
oct17032416325
95183354008
102020220117
119473a8303
12484698a45
13262706a26
1415243db6d
15bc558b12
hex786a1cd5

2020220117 has 2 divisors, whose sum is σ = 2020220118. Its totient is φ = 2020220116.

The previous prime is 2020220099. The next prime is 2020220119. The reversal of 2020220117 is 7110220202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1551887236 + 468332881 = 39394^2 + 21641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2020220117 is a prime.

It is a super-2 number, since 2×20202201172 = 8162578642262987378, which contains 22 as substring.

Together with 2020220119, 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 = 2020220095 and 2020220104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020220119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110058 + 1010110059.

It is an arithmetic number, because the mean of its divisors is an integer number (1010110059).

Almost surely, 22020220117 is an apocalyptic number.

It is an amenable number.

2020220117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020220117 is an equidigital number, since it uses as much as digits as its factorization.

2020220117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2020220117 is about 44946.8588112673. The cubic root of 2020220117 is about 1264.1527792699.

Adding to 2020220117 its reverse (7110220202), we get a palindrome (9130440319).

The spelling of 2020220117 in words is "two billion, twenty million, two hundred twenty thousand, one hundred seventeen".