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220012012020 = 2235171911352529
BaseRepresentation
bin1100110011100110111…
…1001110000111110100
3210000220000102020010210
43030321233032013310
512101041033341040
6245023324545420
721616050150243
oct3147157160764
9700800366123
10220012012020
1185341055009
12367816b2270
13179933413c8
14a911c1295a
155aca2b4480
hex3339bce1f4

220012012020 has 96 divisors (see below), whose sum is σ = 686601014400. Its totient is φ = 52312449024.

The previous prime is 220012012009. The next prime is 220012012021. The reversal of 220012012020 is 20210210022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220012011987 and 220012012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012012021) 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, 5656885 + ... + 5695644.

It is an arithmetic number, because the mean of its divisors is an integer number (7152093900).

Almost surely, 2220012012020 is an apocalyptic number.

220012012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220012012020 is an abundant number, since it is smaller than the sum of its proper divisors (466589002380).

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

220012012020 is a wasteful number, since it uses less digits than its factorization.

220012012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11352577 (or 11352575 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220012012020 its reverse (20210210022), we get a palindrome (240222222042).

The spelling of 220012012020 in words is "two hundred twenty billion, twelve million, twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 19 20 30 34 38 51 57 60 68 76 85 95 102 114 170 190 204 228 255 285 323 340 380 510 570 646 969 1020 1140 1292 1615 1938 3230 3876 4845 6460 9690 19380 11352529 22705058 34057587 45410116 56762645 68115174 113525290 136230348 170287935 192992993 215698051 227050580 340575870 385985986 431396102 578978979 647094153 681151740 771971972 862792204 964964965 1078490255 1157957958 1294188306 1929929930 2156980510 2315915916 2588376612 2894894895 3235470765 3666866867 3859859860 4313961020 5789789790 6470941530 7333733734 11000600601 11579579580 12941883060 14667467468 18334334335 22001201202 36668668670 44002402404 55003003005 73337337340 110006006010 220012012020