Search a number
-
+
12201202211210 = 251771771777713
BaseRepresentation
bin1011000110001101000001…
…0100101101100110001010
31121012102102202112110000222
42301203100110231212022
53044401030231224320
641541053243430042
72366336110414325
oct261432024554612
947172382473028
1012201202211210
113984556622091
121450811b25322
136a6750ac882c
143027816077bc
151625abbba825
hexb18d052d98a

12201202211210 has 16 divisors (see below), whose sum is σ = 23254055979336. Its totient is φ = 4593393773568.

The previous prime is 12201202211207. The next prime is 12201202211213. The reversal of 12201202211210 is 1211220210221.

It is an interprime number because it is at equal distance from previous prime (12201202211207) and next prime (12201202211213).

It can be written as a sum of positive squares in 4 ways, for example, as 8005181811649 + 4196020399561 = 2829343^2 + 2048419^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (12201202211213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35885888687 + ... + 35885889026.

Almost surely, 212201202211210 is an apocalyptic number.

12201202211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12201202211210 is a deficient number, since it is larger than the sum of its proper divisors (11052853768126).

12201202211210 is a wasteful number, since it uses less digits than its factorization.

12201202211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71771777737.

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

Adding to 12201202211210 its reverse (1211220210221), we get a palindrome (13412422421431).

The spelling of 12201202211210 in words is "twelve trillion, two hundred one billion, two hundred two million, two hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 170 71771777713 143543555426 358858888565 717717777130 1220120221121 2440240442242 6100601105605 12201202211210