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20330212002012 = 223211233220338709
BaseRepresentation
bin1001001111101011111110…
…00100001000100011011100
32122222112211102121020212100
410213311333010020203130
510131042233233031022
6111123323115205100
74165544414515623
oct447657704104334
978875742536770
1020330212002012
116528aa3738640
12234416aa46790
13b461913a48c3
14503db7a326ba
15253c7ea991ac
hex127d7f1088dc

20330212002012 has 72 divisors (see below), whose sum is σ = 56302709888880. Its totient is φ = 6134229630720.

The previous prime is 20330212001903. The next prime is 20330212002013. The reversal of 20330212002012 is 21020021203302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330212002013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110077087 + ... + 110261622.

It is an arithmetic number, because the mean of its divisors is an integer number (781982081790).

Almost surely, 220330212002012 is an apocalyptic number.

20330212002012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20330212002012 is an abundant number, since it is smaller than the sum of its proper divisors (35972497886868).

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

20330212002012 is a wasteful number, since it uses less digits than its factorization.

20330212002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220338963 (or 220338958 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20330212002012 its reverse (21020021203302), we get a palindrome (41350233205314).

The spelling of 20330212002012 in words is "twenty trillion, three hundred thirty billion, two hundred twelve million, two thousand, twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 233 396 466 699 932 1398 2097 2563 2796 4194 5126 7689 8388 10252 15378 23067 30756 46134 92268 220338709 440677418 661016127 881354836 1322032254 1983048381 2423725799 2644064508 3966096762 4847451598 7271177397 7932193524 9694903196 14542354794 21813532191 29084709588 43627064382 51338919197 87254128764 102677838394 154016757591 205355676788 308033515182 462050272773 564728111167 616067030364 924100545546 1129456222334 1694184333501 1848201091092 2258912444668 3388368667002 5082553000503 6776737334004 10165106001006 20330212002012