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12020202021012 = 2234323294965157
BaseRepresentation
bin1010111011101010101111…
…0111110010000010010100
31120120010020112202002202220
42232322223313302002110
53033414333204133022
641322000553302340
72350300545241653
oct256725367620224
946503215662686
1012020202021012
113914814747239
1214217194049b0
13692666bab683
142d7ad0a5119a
1515ca1679485c
hexaeeabdf2094

12020202021012 has 24 divisors (see below), whose sum is σ = 28699397074656. Its totient is φ = 3913554146208.

The previous prime is 12020202020999. The next prime is 12020202021013. The reversal of 12020202021012 is 21012020202021.

It is a junction number, because it is equal to n+sod(n) for n = 12020202020982 and 12020202021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020202021013) 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, 11647482063 + ... + 11647483094.

It is an arithmetic number, because the mean of its divisors is an integer number (1195808211444).

Almost surely, 212020202021012 is an apocalyptic number.

12020202021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12020202021012 is an abundant number, since it is smaller than the sum of its proper divisors (16679195053644).

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

12020202021012 is a wasteful number, since it uses less digits than its factorization.

12020202021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23294965207 (or 23294965205 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12020202021012 its reverse (21012020202021), we get a palindrome (33032222223033).

The spelling of 12020202021012 in words is "twelve trillion, twenty billion, two hundred two million, twenty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 23294965157 46589930314 69884895471 93179860628 139769790942 279539581884 1001683501751 2003367003502 3005050505253 4006734007004 6010101010506 12020202021012