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2112020200020 = 223535200336667
BaseRepresentation
bin11110101110111110001…
…101101011101001010100
321110220111022121121210010
4132232332031223221110
5234100404132400040
64254125414400220
7305405554331343
oct36567615535124
97426438547703
102112020200020
11744780385095
122a13a7360070
1312421645bab3
14743180a9b5a
1539e12627e80
hex1ebbe36ba54

2112020200020 has 24 divisors (see below), whose sum is σ = 5913656560224. Its totient is φ = 563205386656.

The previous prime is 2112020200013. The next prime is 2112020200033. The reversal of 2112020200020 is 200020202112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2112020199969 and 2112020200005.

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, 17600168274 + ... + 17600168393.

It is an arithmetic number, because the mean of its divisors is an integer number (246402356676).

Almost surely, 22112020200020 is an apocalyptic number.

2112020200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112020200020 is an abundant number, since it is smaller than the sum of its proper divisors (3801636360204).

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

2112020200020 is a wasteful number, since it uses less digits than its factorization.

2112020200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35200336679 (or 35200336677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2112020200020 its reverse (200020202112), we get a palindrome (2312040402132).

The spelling of 2112020200020 in words is "two trillion, one hundred twelve billion, twenty million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 35200336667 70400673334 105601010001 140801346668 176001683335 211202020002 352003366670 422404040004 528005050005 704006733340 1056010100010 2112020200020