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12010010221212 = 22323431011965809
BaseRepresentation
bin1010111011000100110001…
…1001001001101010011100
31120112010221021002000210020
42232301030121021222130
53033233000104034322
641313153355512140
72346460151334633
oct256611431115234
946463837060706
1012010010221212
1139104647401a3
12141b754158650
136917015484c3
142d740524251a
1515c61bb4c05c
hexaec4c649a9c

12010010221212 has 48 divisors (see below), whose sum is σ = 29921805070080. Its totient is φ = 3740225626368.

The previous prime is 12010010221163. The next prime is 12010010221219. The reversal of 12010010221212 is 21212201001021.

It is a junction number, because it is equal to n+sod(n) for n = 12010010221191 and 12010010221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010010221219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505971037 + ... + 505994772.

It is an arithmetic number, because the mean of its divisors is an integer number (623370938960).

Almost surely, 212010010221212 is an apocalyptic number.

12010010221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010010221212 is an abundant number, since it is smaller than the sum of its proper divisors (17911794848868).

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

12010010221212 is a wasteful number, since it uses less digits than its factorization.

12010010221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011965882 (or 1011965880 counting only the distinct ones).

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

Adding to 12010010221212 its reverse (21212201001021), we get a palindrome (33222211222233).

The spelling of 12010010221212 in words is "twelve trillion, ten billion, ten million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 43 46 69 86 92 129 138 172 258 276 516 989 1978 2967 3956 5934 11868 1011965809 2023931618 3035897427 4047863236 6071794854 12143589708 23275213607 43514529787 46550427214 69825640821 87029059574 93100854428 130543589361 139651281642 174058119148 261087178722 279302563284 522174357444 1000834185101 2001668370202 3002502555303 4003336740404 6005005110606 12010010221212