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12210311212120 = 235743608254329
BaseRepresentation
bin1011000110101110111101…
…0000110010110001011000
31121020021221120201122012001
42301223233100302301120
53100023204132241440
641545201201130344
72400110615556310
oct261535720626130
947207846648161
1012210311212120
1139884003a230a
1214525346299b4
136a75730214b8
14302da72b4440
15162941728b9a
hexb1aef432c58

12210311212120 has 32 divisors (see below), whose sum is σ = 31397943117600. Its totient is φ = 4186392415488.

The previous prime is 12210311212111. The next prime is 12210311212159. The reversal of 12210311212120 is 2121211301221.

12210311212120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21804126885 + ... + 21804127444.

It is an arithmetic number, because the mean of its divisors is an integer number (981185722425).

Almost surely, 212210311212120 is an apocalyptic number.

12210311212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210311212120 is an abundant number, since it is smaller than the sum of its proper divisors (19187631905480).

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

12210311212120 is a wasteful number, since it uses less digits than its factorization.

12210311212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43608254347 (or 43608254343 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12210311212120 its reverse (2121211301221), we get a palindrome (14331522513341).

The spelling of 12210311212120 in words is "twelve trillion, two hundred ten billion, three hundred eleven million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 43608254329 87216508658 174433017316 218041271645 305257780303 348866034632 436082543290 610515560606 872165086580 1221031121212 1526288901515 1744330173160 2442062242424 3052577803030 6105155606060 12210311212120