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210220202122202 = 2105110101061101
BaseRepresentation
bin101111110011000110110100…
…011110001101101111011010
31000120022212002100000010200102
4233303012310132031233122
5210023221433220402302
62023033454434135402
762164623403066436
oct5763066436155732
91016285070003612
10210220202122202
1160a89983739a28
121b6b2100421562
13903b8abc5c41c
1439ca9d7cd19c6
15194849acea702
hexbf31b478dbda

210220202122202 has 4 divisors (see below), whose sum is σ = 315330303183306. Its totient is φ = 105110101061100.

The previous prime is 210220202122201. The next prime is 210220202122241. The reversal of 210220202122202 is 202221202022012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208320466422721 + 1899735699481 = 14433311^2 + 1378309^2 .

It is a super-3 number, since 3×2102202021222023 (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (210220202122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555050530549 + ... + 52555050530552.

Almost surely, 2210220202122202 is an apocalyptic number.

210220202122202 is a deficient number, since it is larger than the sum of its proper divisors (105110101061104).

210220202122202 is a wasteful number, since it uses less digits than its factorization.

210220202122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105110101061103.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 210220202122202 its reverse (202221202022012), we get a palindrome (412441404144214).

The spelling of 210220202122202 in words is "two hundred ten trillion, two hundred twenty billion, two hundred two million, one hundred twenty-two thousand, two hundred two".

Divisors: 1 2 105110101061101 210220202122202