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12220110010212 = 223131920891973597
BaseRepresentation
bin1011000111010011011101…
…0100001111011101100100
31121021020020110220011011220
42301310313110033131210
53100203241130311322
641553501355300340
72400605501146626
oct261646724173544
947236213804156
1012220110010212
113991579583355
12145440a14a6b0
136a8475123590
14303656820c16
15162d16ae155c
hexb1d3750f764

12220110010212 has 96 divisors (see below), whose sum is σ = 32338587388800. Its totient is φ = 3560430339072.

The previous prime is 12220110010181. The next prime is 12220110010247. The reversal of 12220110010212 is 21201001102221.

It is a junction number, because it is equal to n+sod(n) for n = 12220110010191 and 12220110010200.

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, 5204998 + ... + 7178594.

It is an arithmetic number, because the mean of its divisors is an integer number (336860285300).

Almost surely, 212220110010212 is an apocalyptic number.

12220110010212 is a gapful number since it is divisible by the number (12) 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 12220110010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16169293694400).

12220110010212 is an abundant number, since it is smaller than the sum of its proper divisors (20118477378588).

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

12220110010212 is a wasteful number, since it uses less digits than its factorization.

12220110010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975725 (or 1975723 counting only the distinct ones).

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

Adding to 12220110010212 its reverse (21201001102221), we get a palindrome (33421111112433).

The spelling of 12220110010212 in words is "twelve trillion, two hundred twenty billion, one hundred ten million, ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 494 741 988 1482 2089 2964 4178 6267 8356 12534 25068 27157 39691 54314 79382 81471 108628 119073 158764 162942 238146 325884 476292 515983 1031966 1547949 1973597 2063932 3095898 3947194 5920791 6191796 7894388 11841582 23683164 25656761 37498343 51313522 74996686 76970283 102627044 112495029 149993372 153940566 224990058 307881132 449980116 487478459 974956918 1462435377 1949913836 2924870754 4122844133 5849741508 8245688266 12368532399 16491376532 24737064798 49474129596 53596973729 78334038527 107193947458 156668077054 160790921187 214387894916 235002115581 313336154108 321581842374 470004231162 643163684748 940008462324 1018342500851 2036685001702 3055027502553 4073370003404 6110055005106 12220110010212