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10010121201020 = 2255387710767971
BaseRepresentation
bin1001000110101010100110…
…1101111110010101111100
31022102221212120001112111102
42101222221231332111330
52303001212011413040
633142330341312232
72052131064212063
oct221525155762574
938387776045442
1010010121201020
11320a2a5500166
121158041405678
13577c47ca0475
142686c74011da
151255bd792515
hex91aa9b7e57c

10010121201020 has 48 divisors (see below), whose sum is σ = 21442305715488. Its totient is φ = 3924020555520.

The previous prime is 10010121201013. The next prime is 10010121201071. The reversal of 10010121201020 is 2010212101001.

It is a super-2 number, since 2×100101212010202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10010121200992 and 10010121201010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4454366 + ... + 6313605.

It is an arithmetic number, because the mean of its divisors is an integer number (446714702406).

Almost surely, 210010121201020 is an apocalyptic number.

10010121201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10010121201020 is an abundant number, since it is smaller than the sum of its proper divisors (11432184514468).

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

10010121201020 is a wasteful number, since it uses less digits than its factorization.

10010121201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768910 (or 10768908 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10010121201020 its reverse (2010212101001), we get a palindrome (12020333302021).

The spelling of 10010121201020 in words is "ten trillion, ten billion, one hundred twenty-one million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 877 1060 1754 3508 4385 8770 17540 46481 92962 185924 232405 464810 929620 10767971 21535942 43071884 53839855 107679710 215359420 570702463 1141404926 2282809852 2853512315 5707024630 9443510567 11414049260 18887021134 37774042268 47217552835 94435105670 188870211340 500506060051 1001012120102 2002024240204 2502530300255 5005060600510 10010121201020