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10010120220 = 2232555611779
BaseRepresentation
bin10010101001010011…
…00101000000011100
3221211121210210110100
421110221211000130
5131000042321340
64333143341100
7503026421652
oct112451450034
927747723410
1010010120220
1142774a7531
121b34451790
13c36b21979
146ad638dd2
153d8c0b830
hex254a6501c

10010120220 has 36 divisors (see below), whose sum is σ = 30364031880. Its totient is φ = 2669365344.

The previous prime is 10010120213. The next prime is 10010120299. The reversal of 10010120220 is 2202101001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27805710 + ... + 27806069.

It is an arithmetic number, because the mean of its divisors is an integer number (843445330).

Almost surely, 210010120220 is an apocalyptic number.

10010120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010120220 is an abundant number, since it is smaller than the sum of its proper divisors (20353911660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10010120220 is a wasteful number, since it uses less digits than its factorization.

10010120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55611794 (or 55611789 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10010120220 its reverse (2202101001), we get a palindrome (12212221221).

The spelling of 10010120220 in words is "ten billion, ten million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 55611779 111223558 166835337 222447116 278058895 333670674 500506011 556117790 667341348 834176685 1001012022 1112235580 1668353370 2002024044 2502530055 3336706740 5005060110 10010120220