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12201112012020 = 2235810472509061
BaseRepresentation
bin1011000110001100101011…
…1100101000010011110100
31121012102012110210212000020
42301203022330220103310
53044400334133341040
641541040302245140
72366333633632041
oct261431274502364
947172173725006
1012201112012020
11398450a7150a8
1214507a78867b0
136a6738207029
143027736481c8
151625a3ceecd0
hexb18caf284f4

12201112012020 has 48 divisors (see below), whose sum is σ = 34163548771968. Its totient is φ = 3253588428160.

The previous prime is 12201112012013. The next prime is 12201112012121. The reversal of 12201112012020 is 2021021110221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3608290 + ... + 6117350.

It is an arithmetic number, because the mean of its divisors is an integer number (711740599416).

Almost surely, 212201112012020 is an apocalyptic number.

12201112012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201112012020 is an abundant number, since it is smaller than the sum of its proper divisors (21962436759948).

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

12201112012020 is a wasteful number, since it uses less digits than its factorization.

12201112012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590120 (or 2590118 counting only the distinct ones).

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

Adding to 12201112012020 its reverse (2021021110221), we get a palindrome (14222133122241).

The spelling of 12201112012020 in words is "twelve trillion, two hundred one billion, one hundred twelve million, twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 81047 162094 243141 324188 405235 486282 810470 972564 1215705 1620940 2431410 2509061 4862820 5018122 7527183 10036244 12545305 15054366 25090610 30108732 37635915 50181220 75271830 150543660 203351866867 406703733734 610055600601 813407467468 1016759334335 1220111201202 2033518668670 2440222402404 3050278003005 4067037337340 6100556006010 12201112012020