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12102222123320 = 235743222221869
BaseRepresentation
bin1011000000011100010010…
…1001101001000100111000
31120211221221200001000011212
42300013010221221010320
53041240322330421240
641423403432542252
72356233226511450
oct260070451510470
946757850030155
1012102222123320
11394658398005a
1214355a9851988
1369a3086a86a4
142dba71bd8d60
1515ec17297165
hexb01c4a69138

12102222123320 has 32 divisors (see below), whose sum is σ = 31119999746400. Its totient is φ = 4149333299328.

The previous prime is 12102222123311. The next prime is 12102222123371. The reversal of 12102222123320 is 2332122220121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21611110655 + ... + 21611111214.

It is an arithmetic number, because the mean of its divisors is an integer number (972499992075).

Almost surely, 212102222123320 is an apocalyptic number.

12102222123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102222123320 is an abundant number, since it is smaller than the sum of its proper divisors (19017777623080).

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

12102222123320 is a wasteful number, since it uses less digits than its factorization.

12102222123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43222221887 (or 43222221883 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12102222123320 its reverse (2332122220121), we get a palindrome (14434344343441).

The spelling of 12102222123320 in words is "twelve trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 43222221869 86444443738 172888887476 216111109345 302555553083 345777774952 432222218690 605111106166 864444437380 1210222212332 1512777765415 1728888874760 2420444424664 3025555530830 6051111061660 12102222123320