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12223322020 = 2257138380917
BaseRepresentation
bin10110110001001000…
…10001011110100100
31011112212100002120101
423120210101132210
5200013132301040
65340524113444
7611622344230
oct133044213644
934485302511
1012223322020
115202823828
122451695884
1311ca4c6330
1483d5515c0
154b818509a
hex2d89117a4

12223322020 has 96 divisors (see below), whose sum is σ = 31973614848. Its totient is φ = 3821824512.

The previous prime is 12223321993. The next prime is 12223322051. The reversal of 12223322020 is 2022332221.

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, 110602 + ... + 191518.

It is an arithmetic number, because the mean of its divisors is an integer number (333058488).

Almost surely, 212223322020 is an apocalyptic number.

12223322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12223322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15986807424).

12223322020 is an abundant number, since it is smaller than the sum of its proper divisors (19750292828).

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

12223322020 is a wasteful number, since it uses less digits than its factorization.

12223322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81029 (or 81027 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12223322020 its reverse (2022332221), we get a palindrome (14245654241).

The spelling of 12223322020 in words is "twelve billion, two hundred twenty-three million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 83 91 130 140 166 182 260 332 364 415 455 581 830 910 1079 1162 1660 1820 2158 2324 2905 4316 5395 5810 7553 10790 11620 15106 21580 30212 37765 75530 80917 151060 161834 323668 404585 566419 809170 1051921 1132838 1618340 2103842 2265676 2832095 4207684 5259605 5664190 6716111 7363447 10519210 11328380 13432222 14726894 21038420 26864444 29453788 33580555 36817235 47012777 67161110 73634470 87309443 94025554 134322220 147268940 174618886 188051108 235063885 349237772 436547215 470127770 611166101 873094430 940255540 1222332202 1746188860 2444664404 3055830505 6111661010 12223322020