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20220122201 = 171249952297
BaseRepresentation
bin10010110101001101…
…101001010001011001
31221012011201122010212
4102311031221101121
5312402322402301
613142231220505
71314034126406
oct226515512131
957164648125
1020220122201
1186368060a4
123b03817735
131ba3188b66
14d9b6252ad
157d524c4bb
hex4b5369459

20220122201 has 8 divisors (see below), whose sum is σ = 21426705000. Its totient is φ = 19015446528.

The previous prime is 20220122179. The next prime is 20220122203. The reversal of 20220122201 is 10222102202.

It can be written as a sum of positive squares in 4 ways, for example, as 3288907801 + 16931214400 = 57349^2 + 130120^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20220122201 - 210 = 20220121177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220122203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454916 + ... + 497381.

It is an arithmetic number, because the mean of its divisors is an integer number (2678338125).

Almost surely, 220220122201 is an apocalyptic number.

It is an amenable number.

20220122201 is a deficient number, since it is larger than the sum of its proper divisors (1206582799).

20220122201 is a wasteful number, since it uses less digits than its factorization.

20220122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953563.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20220122201 its reverse (10222102202), we get a palindrome (30442224403).

The spelling of 20220122201 in words is "twenty billion, two hundred twenty million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 17 1249 21233 952297 16189049 1189418953 20220122201