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22020101200 = 245255050253
BaseRepresentation
bin10100100000100000…
…000001010001010000
32002211121201001010201
4110200200001101100
5330044121214300
614041011104544
71406451525526
oct244040012120
962747631121
1022020101200
11937a855a49
1243265a2154
1320cc06c4a6
1410cc6d4316
1588d29e66a
hex520801450

22020101200 has 30 divisors (see below), whose sum is σ = 52903294094. Its totient is φ = 8808040320.

The previous prime is 22020101183. The next prime is 22020101221. The reversal of 22020101200 is 210102022.

It can be written as a sum of positive squares in 3 ways, for example, as 189447696 + 21830653504 = 13764^2 + 147752^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27524727 + ... + 27525526.

Almost surely, 222020101200 is an apocalyptic number.

22020101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020101200 is an abundant number, since it is smaller than the sum of its proper divisors (30883192894).

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

22020101200 is a wasteful number, since it uses less digits than its factorization.

22020101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55050271 (or 55050260 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22020101200 its reverse (210102022), we get a palindrome (22230203222).

The spelling of 22020101200 in words is "twenty-two billion, twenty million, one hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 55050253 110100506 220201012 275251265 440402024 550502530 880804048 1101005060 1376256325 2202010120 2752512650 4404020240 5505025300 11010050600 22020101200