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13021211022012 = 2232418821958687
BaseRepresentation
bin1011110101111011110010…
…1010000101001010111100
31201002211000120210002102100
42331132330222011022330
53201314420010201022
643405510050225100
72512515514330614
oct275367452051274
951084016702370
1013021211022012
1141702a0183556
121563721285190
13735b8321630b
143303310a9a44
15178aa18b91ac
hexbd7bca852bc

13021211022012 has 36 divisors (see below), whose sum is σ = 33717526105536. Its totient is φ = 4234540169280.

The previous prime is 13021211022007. The next prime is 13021211022023. The reversal of 13021211022012 is 21022011212031.

13021211022012 is a `hidden beast` number, since 1 + 302 + 121 + 10 + 220 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4410977868 + ... + 4410980819.

It is an arithmetic number, because the mean of its divisors is an integer number (936597947376).

Almost surely, 213021211022012 is an apocalyptic number.

13021211022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13021211022012 is an abundant number, since it is smaller than the sum of its proper divisors (20696315083524).

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

13021211022012 is a wasteful number, since it uses less digits than its factorization.

13021211022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8821958738 (or 8821958733 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13021211022012 its reverse (21022011212031), we get a palindrome (34043222234043).

The spelling of 13021211022012 in words is "thirteen trillion, twenty-one billion, two hundred eleven million, twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 8821958687 17643917374 26465876061 35287834748 52931752122 79397628183 105863504244 158795256366 317590512732 361700306167 723400612334 1085100918501 1446801224668 2170201837002 3255302755503 4340403674004 6510605511006 13021211022012