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12011200212 = 22311271335771
BaseRepresentation
bin10110010111110110…
…00101111011010100
31011000002012012011010
423023323011323110
5144044331401322
65303505412220
7603435342264
oct131373057324
934002165133
1012011200212
115104011550
1223b263a070
13119558677b
1481d2d57a4
154a473420c
hex2cbec5ed4

12011200212 has 48 divisors (see below), whose sum is σ = 30686874624. Its totient is φ = 3626316000.

The previous prime is 12011200177. The next prime is 12011200217. The reversal of 12011200212 is 21200211021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011200217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132114 + ... + 203657.

It is an arithmetic number, because the mean of its divisors is an integer number (639309888).

Almost surely, 212011200212 is an apocalyptic number.

12011200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011200212 is an abundant number, since it is smaller than the sum of its proper divisors (18675674412).

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

12011200212 is a wasteful number, since it uses less digits than its factorization.

12011200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336060 (or 336058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12011200212 its reverse (21200211021), we get a palindrome (33211411233).

The spelling of 12011200212 in words is "twelve billion, eleven million, two hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 271 542 813 1084 1626 2981 3252 5962 8943 11924 17886 35772 335771 671542 1007313 1343084 2014626 3693481 4029252 7386962 11080443 14773924 22160886 44321772 90993941 181987882 272981823 363975764 545963646 1000933351 1091927292 2001866702 3002800053 4003733404 6005600106 12011200212