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2221010055 = 325112407899
BaseRepresentation
bin1000010001100001…
…1110110010000111
312201210020000000200
42010120132302013
514022034310210
61004215541543
7106016162655
oct20430366207
95653200020
102221010055
11a3a77a800
1251b98a8b3
132951a9744
14170d89dd5
15ceebc0c0
hex8461ec87

2221010055 has 36 divisors (see below), whose sum is σ = 4231554600. Its totient is φ = 1076850720.

The previous prime is 2221010047. The next prime is 2221010059. The reversal of 2221010055 is 5500101222.

It is not a de Polignac number, because 2221010055 - 23 = 2221010047 is a prime.

It is a super-2 number, since 2×22210100552 = 9865771328822206050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221010059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198505 + ... + 209394.

Almost surely, 22221010055 is an apocalyptic number.

2221010055 is a deficient number, since it is larger than the sum of its proper divisors (2010544545).

2221010055 is a wasteful number, since it uses less digits than its factorization.

2221010055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407932 (or 407918 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2221010055 is about 47127.5933503929. The cubic root of 2221010055 is about 1304.7185635225.

Adding to 2221010055 its reverse (5500101222), we get a palindrome (7721111277).

The spelling of 2221010055 in words is "two billion, two hundred twenty-one million, ten thousand, fifty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 121 165 363 495 605 1089 1815 5445 407899 1223697 2039495 3671091 4486889 6118485 13460667 18355455 22434445 40382001 49355779 67303335 148067337 201910005 246778895 444202011 740336685 2221010055