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200201221120 = 210556536917
BaseRepresentation
bin1011101001110011101…
…1000011010000000000
3201010202100220202222111
42322130323003100000
511240003003033440
6231545434545104
720315113205335
oct2723473032000
9633670822874
10200201221120
11779a540864a
1232972b98194
1315b56c13224
149992b0098c
15531ae704ea
hex2e9cec3400

200201221120 has 88 divisors (see below), whose sum is σ = 480402716904. Its totient is φ = 80054747136.

The previous prime is 200201221111. The next prime is 200201221141. The reversal of 200201221120 is 21122102002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54240546816 + 145960674304 = 232896^2 + 382048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 200201221120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28939902 + ... + 28946818.

It is an arithmetic number, because the mean of its divisors is an integer number (5459121783).

Almost surely, 2200201221120 is an apocalyptic number.

200201221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200201221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240201358452).

200201221120 is an abundant number, since it is smaller than the sum of its proper divisors (280201495784).

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

200201221120 is an equidigital number, since it uses as much as digits as its factorization.

200201221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12595 (or 12577 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200201221120 its reverse (21122102002), we get a palindrome (221323323122).

The spelling of 200201221120 in words is "two hundred billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2560 5120 5653 6917 11306 13834 22612 27668 28265 34585 45224 55336 56530 69170 90448 110672 113060 138340 180896 221344 226120 276680 361792 442688 452240 553360 723584 885376 904480 1106720 1447168 1770752 1808960 2213440 2894336 3541504 3617920 4426880 5788672 7083008 7235840 8853760 14471680 17707520 28943360 35415040 39101801 78203602 156407204 195509005 312814408 391018010 625628816 782036020 1251257632 1564072040 2502515264 3128144080 5005030528 6256288160 10010061056 12512576320 20020122112 25025152640 40040244224 50050305280 100100610560 200201221120