Search a number
-
+
1200202210220 = 2251319242955913
BaseRepresentation
bin10001011101110001101…
…000000101101110101100
311020201221011012110020212
4101131301220011232230
5124131003231211340
62315210522401552
7152466062314136
oct21356150055654
94221834173225
101200202210220
11423003949682
121747353602b8
1389242467020
1442139324056
152134782ea65
hex11771a05bac

1200202210220 has 48 divisors (see below), whose sum is σ = 2857161548640. Its totient is φ = 419827815936.

The previous prime is 1200202210217. The next prime is 1200202210241. The reversal of 1200202210220 is 220122020021.

It is a junction number, because it is equal to n+sod(n) for n = 1200202210195 and 1200202210204.

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, 121473017 + ... + 121482896.

It is an arithmetic number, because the mean of its divisors is an integer number (59524198930).

Almost surely, 21200202210220 is an apocalyptic number.

1200202210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200202210220 is an abundant number, since it is smaller than the sum of its proper divisors (1656959338420).

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

1200202210220 is a wasteful number, since it uses less digits than its factorization.

1200202210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242955954 (or 242955952 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1200202210220 its reverse (220122020021), we get a palindrome (1420324230241).

The spelling of 1200202210220 in words is "one trillion, two hundred billion, two hundred two million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 242955913 485911826 971823652 1214779565 2429559130 3158426869 4616162347 4859118260 6316853738 9232324694 12633707476 15792134345 18464649388 23080811735 31584268690 46161623470 60010110511 63168537380 92323246940 120020221022 240040442044 300050552555 600101105110 1200202210220