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12122102200220 = 2255479874712647
BaseRepresentation
bin1011000001100110010110…
…0110000111011110011100
31120220212021010220112212022
42300121211212013132130
53042102031130401340
641440452235555312
72360535664414355
oct260314546073634
946825233815768
1012122102200220
113953a55740081
1214394175bbb38
1369c1562853bc
142dc9da1c4d2c
151604cc7253b5
hexb066598779c

12122102200220 has 48 divisors (see below), whose sum is σ = 25465985072640. Its totient is φ = 4847018366784.

The previous prime is 12122102200207. The next prime is 12122102200249. The reversal of 12122102200220 is 2200220122121.

It is a happy number.

12122102200220 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 15 ways as a sum of consecutive naturals, for example, 958489937 + ... + 958502583.

It is an arithmetic number, because the mean of its divisors is an integer number (530541355680).

Almost surely, 212122102200220 is an apocalyptic number.

12122102200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122102200220 is an abundant number, since it is smaller than the sum of its proper divisors (13343882872420).

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

12122102200220 is a wasteful number, since it uses less digits than its factorization.

12122102200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26882 (or 26880 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12122102200220 its reverse (2200220122121), we get a palindrome (14322322322341).

The spelling of 12122102200220 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5479 8747 10958 12647 17494 21916 25294 27395 34988 43735 50588 54790 63235 87470 109580 126470 174940 252940 47924813 69292913 95849626 110623309 138585826 191699252 221246618 239624065 277171652 346464565 442493236 479248130 553116545 692929130 958496260 1106233090 1385858260 2212466180 606105110011 1212210220022 2424420440044 3030525550055 6061051100110 12122102200220