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12102222112210 = 251210222211221
BaseRepresentation
bin1011000000011100010010…
…1001100110010111010010
31120211221221200000102221101
42300013010221212113102
53041240322330042320
641423403432415014
72356233226434166
oct260070451462722
946757850012841
1012102222112210
11394658397277a
1214355a984746a
1369a3086a3609
142dba71bd4ca6
1515ec17293c0a
hexb01c4a665d2

12102222112210 has 8 divisors (see below), whose sum is σ = 21783999801996. Its totient is φ = 4840888844880.

The previous prime is 12102222112199. The next prime is 12102222112249. The reversal of 12102222112210 is 1221122220121.

It can be written as a sum of positive squares in 2 ways, for example, as 12101958991369 + 263120841 = 3478787^2 + 16221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605111105601 + ... + 605111105620.

Almost surely, 212102222112210 is an apocalyptic number.

12102222112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102222112210 is a deficient number, since it is larger than the sum of its proper divisors (9681777689786).

12102222112210 is a wasteful number, since it uses less digits than its factorization.

12102222112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210222211228.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12102222112210 its reverse (1221122220121), we get a palindrome (13323344332331).

The spelling of 12102222112210 in words is "twelve trillion, one hundred two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 1210222211221 2420444422442 6051111056105 12102222112210