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221010212200101 = 31710969157535729
BaseRepresentation
bin110010010000000111110011…
…001100001001111010100101
31001222112100222200120111122120
4302100013303030021322211
5212432012403310400401
62102014405001020153
764360314042346542
oct6220076314117245
91058470880514576
10221010212200101
11644699a5076375
1220955314a84659
139642234494cac
143c80d466c7bc9
151a83eb1eb3836
hexc901f3309ea5

221010212200101 has 32 divisors (see below), whose sum is σ = 315332623267200. Its totient is φ = 137201998417920.

The previous prime is 221010212200081. The next prime is 221010212200139. The reversal of 221010212200101 is 101002212010122.

It is not a de Polignac number, because 221010212200101 - 215 = 221010212167333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010212200201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24926596 + ... + 32609133.

It is an arithmetic number, because the mean of its divisors is an integer number (9854144477100).

Almost surely, 2221010212200101 is an apocalyptic number.

It is an amenable number.

221010212200101 is a deficient number, since it is larger than the sum of its proper divisors (94322411067099).

221010212200101 is a wasteful number, since it uses less digits than its factorization.

221010212200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57536549.

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

Adding to 221010212200101 its reverse (101002212010122), we get a palindrome (322012424210223).

The spelling of 221010212200101 in words is "two hundred twenty-one trillion, ten billion, two hundred twelve million, two hundred thousand, one hundred one".

Divisors: 1 3 17 51 109 327 691 1853 2073 5559 11747 35241 75319 225957 1280423 3841269 57535729 172607187 978107393 2934322179 6271394461 18814183383 39757188739 106613705837 119271566217 319841117511 675872208563 2027616625689 4333533572551 13000600717653 73670070733367 221010212200101