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12020020212100 = 2252307391531603
BaseRepresentation
bin1010111011101010000100…
…0010001111000110000100
31120120002202212122020211111
42232322201002033012010
53033414000133241400
641321530540414404
72350263210010555
oct256724102170604
946502685566744
1012020020212100
11391473105953a
121421688547404
13692638323334
142d7ab484632c
1515ca058303ba
hexaeea108f184

12020020212100 has 36 divisors (see below), whose sum is σ = 26168406284944. Its totient is φ = 4792346808480.

The previous prime is 12020020212077. The next prime is 12020020212103. The reversal of 12020020212100 is 121202002021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12020020212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195735102 + ... + 195796501.

Almost surely, 212020020212100 is an apocalyptic number.

12020020212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020020212100 is an abundant number, since it is smaller than the sum of its proper divisors (14148386072844).

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

12020020212100 is a wasteful number, since it uses less digits than its factorization.

12020020212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391531924 (or 391531917 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12020020212100 its reverse (121202002021), we get a palindrome (12141222214121).

The spelling of 12020020212100 in words is "twelve trillion, twenty billion, twenty million, two hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 307 614 1228 1535 3070 6140 7675 15350 30700 391531603 783063206 1566126412 1957658015 3915316030 7830632060 9788290075 19576580150 39153160300 120200202121 240400404242 480800808484 601001010605 1202002021210 2404004042420 3005005053025 6010010106050 12020020212100