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212002110020121 = 3712394164498203
BaseRepresentation
bin110000001101000010010110…
…011101011001101000011001
31000210122012111120002021211020
4300031002112131121220121
5210241420310131120441
62030520231432353053
762440434630236301
oct6015022635315031
91023565446067736
10212002110020121
116160665424a533
121b93b519845789
13913a936b67385
143a4cd5793a601
1519799dc355e66
hexc0d096759a19

212002110020121 has 16 divisors (see below), whose sum is σ = 287850115860480. Its totient is φ = 138761080090640.

The previous prime is 212002110020111. The next prime is 212002110020123. The reversal of 212002110020121 is 121020011200212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212002110020121 is a prime.

It is a super-2 number, since 2×2120021100201212 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212002110020121.

It is not an unprimeable number, because it can be changed into a prime (212002110020123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2082198195 + ... + 2082300008.

It is an arithmetic number, because the mean of its divisors is an integer number (17990632241280).

Almost surely, 2212002110020121 is an apocalyptic number.

It is an amenable number.

212002110020121 is a deficient number, since it is larger than the sum of its proper divisors (75848005840359).

212002110020121 is a wasteful number, since it uses less digits than its factorization.

212002110020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164498516.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212002110020121 its reverse (121020011200212), we get a palindrome (333022121220333).

The spelling of 212002110020121 in words is "two hundred twelve trillion, two billion, one hundred ten million, twenty thousand, one hundred twenty-one".

Divisors: 1 3 71 213 239 717 16969 50907 4164498203 12493494609 295679372413 887038117239 995315070517 2985945211551 70667370006707 212002110020121