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12212010110020 = 2257349709352523
BaseRepresentation
bin1011000110110101010010…
…0001100100110001000100
31121020110022222111120222111
42301231110201210301010
53100040144042010040
641550041530310404
72400200665141360
oct261552441446104
947213288446874
1012212010110020
1139890a2382466
121452929588404
136a7783ca3226
143030c8b902a0
151629e0960dea
hexb1b54864c44

12212010110020 has 96 divisors (see below), whose sum is σ = 29434343904000. Its totient is φ = 4169077461504.

The previous prime is 12212010109993. The next prime is 12212010110021. The reversal of 12212010110020 is 2001101021221.

It is not an unprimeable number, because it can be changed into a prime (12212010110021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34465479 + ... + 34818001.

It is an arithmetic number, because the mean of its divisors is an integer number (306607749000).

Almost surely, 212212010110020 is an apocalyptic number.

12212010110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212010110020 is an abundant number, since it is smaller than the sum of its proper divisors (17222333793980).

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

12212010110020 is a wasteful number, since it uses less digits than its factorization.

12212010110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353597 (or 353595 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12212010110020 its reverse (2001101021221), we get a palindrome (14213111131241).

The spelling of 12212010110020 in words is "twelve trillion, two hundred twelve billion, ten million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 349 698 709 1396 1418 1745 2443 2836 3490 3545 4886 4963 6980 7090 9772 9926 12215 14180 19852 24430 24815 48860 49630 99260 247441 352523 494882 705046 989764 1237205 1410092 1732087 1762615 2467661 2474410 3464174 3525230 4935322 4948820 6928348 7050460 8660435 9870644 12338305 17320870 24676610 34641740 49353220 123030527 246061054 249938807 492122108 499877614 615152635 861213689 999755228 1230305270 1249694035 1722427378 1749571649 2460610540 2499388070 3444854756 3499143298 4306068445 4998776140 6998286596 8612136890 8747858245 17224273780 17495716490 34991432980 87228643643 174457287286 348914574572 436143218215 610600505501 872286436430 1221201011002 1744572872860 2442402022004 3053002527505 6106005055010 12212010110020