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12220230322020 = 2235735981046759
BaseRepresentation
bin1011000111010011111001…
…1111001100011101100100
31121021020112212021121221210
42301310332133030131210
53100204012430301040
641553521334111420
72400611461610130
oct261647637143544
947236485247853
1012220230322020
1139916304883a6
1214544424ab570
136a84940293b6
143036687bc3c0
15162d22459480
hexb1d3e7cc764

12220230322020 has 96 divisors (see below), whose sum is σ = 39213664358400. Its totient is φ = 2785414978944.

The previous prime is 12220230321997. The next prime is 12220230322037. The reversal of 12220230322020 is 2022303202221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40372600 + ... + 40674159.

It is an arithmetic number, because the mean of its divisors is an integer number (408475670400).

Almost surely, 212220230322020 is an apocalyptic number.

12220230322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220230322020 is an abundant number, since it is smaller than the sum of its proper divisors (26993434036380).

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

12220230322020 is a wasteful number, since it uses less digits than its factorization.

12220230322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81047137 (or 81047135 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12220230322020 its reverse (2022303202221), we get a palindrome (14242533524241).

The spelling of 12220230322020 in words is "twelve trillion, two hundred twenty billion, two hundred thirty million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 359 420 718 1077 1436 1795 2154 2513 3590 4308 5026 5385 7180 7539 10052 10770 12565 15078 21540 25130 30156 37695 50260 75390 150780 81046759 162093518 243140277 324187036 405233795 486280554 567327313 810467590 972561108 1134654626 1215701385 1620935180 1701981939 2269309252 2431402770 2836636565 3403963878 4862805540 5673273130 6807927756 8509909695 11346546260 17019819390 29095786481 34039638780 58191572962 87287359443 116383145924 145478932405 174574718886 203670505367 290957864810 349149437772 407341010734 436436797215 581915729620 611011516101 814682021468 872873594430 1018352526835 1222023032202 1745747188860 2036705053670 2444046064404 3055057580505 4073410107340 6110115161010 12220230322020