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2112200101212 = 223229768631769
BaseRepresentation
bin11110101111001000111…
…011111100110101011100
321110220221212010112211020
4132233020323330311130
5234101241211214322
64254155322324140
7305413200425535
oct36571073746534
97426855115736
102112200101212
1174486298a563
122a1437659650
131242447c99c6
1474333d3968c
1539e2331205c
hex1ebc8efcd5c

2112200101212 has 24 divisors (see below), whose sum is σ = 4949988598800. Its totient is φ = 700992172416.

The previous prime is 2112200101211. The next prime is 2112200101307. The reversal of 2112200101212 is 2121010022112.

It is a super-2 number, since 2×21122001012122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112200101191 and 2112200101200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200101211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384313137 + ... + 384318632.

It is an arithmetic number, because the mean of its divisors is an integer number (206249524950).

Almost surely, 22112200101212 is an apocalyptic number.

It is an amenable number.

2112200101212 is an abundant number, since it is smaller than the sum of its proper divisors (2837788497588).

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

2112200101212 is a wasteful number, since it uses less digits than its factorization.

2112200101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768632005 (or 768632003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2112200101212 its reverse (2121010022112), we get a palindrome (4233210123324).

The spelling of 2112200101212 in words is "two trillion, one hundred twelve billion, two hundred million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 229 458 687 916 1374 2748 768631769 1537263538 2305895307 3074527076 4611790614 9223581228 176016675101 352033350202 528050025303 704066700404 1056100050606 2112200101212