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12223110320020 = 2251573892710293
BaseRepresentation
bin1011000111011110101000…
…1001100000111110010100
31121021111222120111200111101
42301313222021200332110
53100230412220220040
641555115214315444
72401043032312555
oct261675211407624
947244876450441
1012223110320020
113992879135536
121454b06ab8b84
136a88328b5b22
1430385d0a832c
15162e401e709a
hexb1dea260f94

12223110320020 has 24 divisors (see below), whose sum is σ = 25832025510984. Its totient is φ = 4858102444416.

The previous prime is 12223110320009. The next prime is 12223110320087. The reversal of 12223110320020 is 2002301132221.

12223110320020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2369148953616 + 9853961366404 = 1539204^2 + 3139102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12223110320020.

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, 1946352007 + ... + 1946358286.

It is an arithmetic number, because the mean of its divisors is an integer number (1076334396291).

Almost surely, 212223110320020 is an apocalyptic number.

12223110320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12223110320020 is an abundant number, since it is smaller than the sum of its proper divisors (13608915190964).

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

12223110320020 is a wasteful number, since it uses less digits than its factorization.

12223110320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892710459 (or 3892710457 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12223110320020 its reverse (2002301132221), we get a palindrome (14225411452241).

The spelling of 12223110320020 in words is "twelve trillion, two hundred twenty-three billion, one hundred ten million, three hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 3892710293 7785420586 15570841172 19463551465 38927102930 77854205860 611155516001 1222311032002 2444622064004 3055777580005 6111555160010 12223110320020