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2212110020 = 225110605501
BaseRepresentation
bin1000001111011010…
…0001111011000100
312201011110211110202
42003312201323010
514012300010040
61003301110032
7105550424231
oct20366417304
95634424422
102212110020
11a35750aaa
125189b8318
132933b1753
1416db10788
15ce310015
hex83da1ec4

2212110020 has 12 divisors (see below), whose sum is σ = 4645431084. Its totient is φ = 884844000.

The previous prime is 2212110011. The next prime is 2212110049. The reversal of 2212110020 is 200112122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1317980416 + 894129604 = 36304^2 + 29902^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212109983 and 2212110010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55302731 + ... + 55302770.

It is an arithmetic number, because the mean of its divisors is an integer number (387119257).

Almost surely, 22212110020 is an apocalyptic number.

2212110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212110020 is an abundant number, since it is smaller than the sum of its proper divisors (2433321064).

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

2212110020 is a wasteful number, since it uses less digits than its factorization.

2212110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605510 (or 110605508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2212110020 is about 47033.0736822505. The cubic root of 2212110020 is about 1302.9734737043.

Adding to 2212110020 its reverse (200112122), we get a palindrome (2412222142).

The spelling of 2212110020 in words is "two billion, two hundred twelve million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 110605501 221211002 442422004 553027505 1106055010 2212110020