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20112000211212 = 22371337497772503
BaseRepresentation
bin1001001001010101100001…
…01000001101100100001100
32122012200120212121201222120
410210222300220031210030
510114003334023224322
6110435154135212540
74144021054063620
oct444526050154414
978180525551876
1020112000211212
1164544a6889468
122309a10217150
13b2b727000170
144d75d6d53180
1524d25c883a5c
hex124ab0a0d90c

20112000211212 has 96 divisors (see below), whose sum is σ = 59318553756672. Its totient is φ = 5160905300736.

The previous prime is 20112000211187. The next prime is 20112000211243. The reversal of 20112000211212 is 21211200021102.

It is a super-2 number, since 2×201120002112122 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20112000211191 and 20112000211200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248845848 + ... + 248926655.

It is an arithmetic number, because the mean of its divisors is an integer number (617901601632).

Almost surely, 220112000211212 is an apocalyptic number.

It is an amenable number.

20112000211212 is an abundant number, since it is smaller than the sum of its proper divisors (39206553545460).

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

20112000211212 is a wasteful number, since it uses less digits than its factorization.

20112000211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497772567 (or 497772565 counting only the distinct ones).

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

Adding to 20112000211212 its reverse (21211200021102), we get a palindrome (41323200232314).

The spelling of 20112000211212 in words is "twenty trillion, one hundred twelve billion, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 37 39 42 52 74 78 84 91 111 148 156 182 222 259 273 364 444 481 518 546 777 962 1036 1092 1443 1554 1924 2886 3108 3367 5772 6734 10101 13468 20202 40404 497772503 995545006 1493317509 1991090012 2986635018 3484407521 5973270036 6471042539 6968815042 10453222563 12942085078 13937630084 18417582611 19413127617 20906445126 25884170156 36835165222 38826255234 41812890252 45297297773 55252747833 73670330444 77652510468 90594595546 110505495666 128923078277 135891893319 181189191092 221010991332 239428573943 257846156554 271783786638 386769234831 478857147886 515692313108 543567573276 718285721829 773538469662 957714295772 1436571443658 1547076939324 1676000017601 2873142887316 3352000035202 5028000052803 6704000070404 10056000105606 20112000211212