Search a number
-
+
12201223031200 = 255272178789827
BaseRepresentation
bin1011000110001101000110…
…0100001000100110100000
31121012102111012201012200201
42301203101210020212200
53044401101043444300
641541055305554544
72366336452400110
oct261432144104640
947172435635621
1012201223031200
113984567352495
121450818aa5a54
136a6755208258
143027842a7040
151625ad92e66a
hexb18d19089a0

12201223031200 has 72 divisors (see below), whose sum is σ = 34041412272672. Its totient is φ = 4183276465920.

The previous prime is 12201223031177. The next prime is 12201223031267. The reversal of 12201223031200 is 213032210221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1089389314 + ... + 1089400513.

It is an arithmetic number, because the mean of its divisors is an integer number (472797392676).

Almost surely, 212201223031200 is an apocalyptic number.

12201223031200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201223031200 is an abundant number, since it is smaller than the sum of its proper divisors (21840189241472).

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

12201223031200 is a wasteful number, since it uses less digits than its factorization.

12201223031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178789854 (or 2178789841 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12201223031200 its reverse (213032210221), we get a palindrome (12414255241421).

The spelling of 12201223031200 in words is "twelve trillion, two hundred one billion, two hundred twenty-three million, thirty-one thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 140 160 175 200 224 280 350 400 560 700 800 1120 1400 2800 5600 2178789827 4357579654 8715159308 10893949135 15251528789 17430318616 21787898270 30503057578 34860637232 43575796540 54469745675 61006115156 69721274464 76257643945 87151593080 108939491350 122012230312 152515287890 174303186160 217878982700 244024460624 305030575780 348606372320 381288219725 435757965400 488048921248 610061151560 762576439450 871515930800 1220122303120 1525152878900 1743031861600 2440244606240 3050305757800 6100611515600 12201223031200