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200121220112012 = 227118793727100621
BaseRepresentation
bin101101100000001001011010…
…001111001001111010001100
3222020120101211220122210002122
4231200021122033021322030
5202212241224322041022
61545342230325112112
760103165251262013
oct5540113217117214
9866511756583078
10200121220112012
1158845a29670701
121a5409bb858638
13878847218cb04
14375bcc1013a7a
15182092b204742
hexb6025a3c9e8c

200121220112012 has 48 divisors (see below), whose sum is σ = 355432580536320. Its totient is φ = 98571368750400.

The previous prime is 200121220111931. The next prime is 200121220112017. The reversal of 200121220112012 is 210211022121002.

It is not an unprimeable number, because it can be changed into a prime (200121220112017) 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, 1988811062 + ... + 1988911682.

It is an arithmetic number, because the mean of its divisors is an integer number (7404845427840).

Almost surely, 2200121220112012 is an apocalyptic number.

It is an amenable number.

200121220112012 is a deficient number, since it is larger than the sum of its proper divisors (155311360424308).

200121220112012 is a wasteful number, since it uses less digits than its factorization.

200121220112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106302 (or 106300 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200121220112012 its reverse (210211022121002), we get a palindrome (410332242233014).

The spelling of 200121220112012 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twelve thousand, twelve".

Divisors: 1 2 4 71 142 284 1879 3727 3758 7454 7516 14908 100621 133409 201242 264617 266818 402484 529234 533636 1058468 7003033 7144091 14006066 14288182 28012132 28576364 189066859 375014467 378133718 497215343 750028934 756267436 994430686 1500057868 1988861372 13423746989 26626027157 26847493978 53252054314 53694987956 106504108628 704652183493 1409304366986 2818608733972 50030305028003 100060610056006 200121220112012