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1212213013113 = 367163193191707
BaseRepresentation
bin10001101000111101100…
…001101010101001111001
311021212221012122110101110
4101220331201222221321
5124330103012404423
62324514415510533
7153402524413164
oct21507541525171
94255835573343
101212213013113
11428107709663
12176b27828449
138a40791199b
1442958554adb
15217ebed6193
hex11a3d86aa79

1212213013113 has 32 divisors (see below), whose sum is σ = 1659031830016. Its totient is φ = 787092691968.

The previous prime is 1212213013087. The next prime is 1212213013133. The reversal of 1212213013113 is 3113103122121.

It is not a de Polignac number, because 1212213013113 - 210 = 1212213012089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212213013113.

It is not an unprimeable number, because it can be changed into a prime (1212213013133) 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, 6227406 + ... + 6419112.

It is an arithmetic number, because the mean of its divisors is an integer number (51844744688).

Almost surely, 21212213013113 is an apocalyptic number.

It is an amenable number.

1212213013113 is a deficient number, since it is larger than the sum of its proper divisors (446818816903).

1212213013113 is a wasteful number, since it uses less digits than its factorization.

1212213013113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192133.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1212213013113 its reverse (3113103122121), we get a palindrome (4325316135234).

The spelling of 1212213013113 in words is "one trillion, two hundred twelve billion, two hundred thirteen million, thirteen thousand, one hundred thirteen".

Divisors: 1 3 67 163 193 201 489 579 10921 12931 31459 32763 38793 94377 191707 575121 2107753 6323259 12844369 31248241 36999451 38533107 93744723 110998353 2093632147 2478963217 6030910513 6280896441 7436889651 18092731539 404071004371 1212213013113