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12021120020210 = 257208182522963
BaseRepresentation
bin1010111011101110001010…
…0101101010111011110010
31120120012121112010021221012
42232323202211222323302
53033423223211121320
641322232025230522
72350332363144320
oct256734245527362
946505545107835
1012021120020210
113915145952664
121421934932442
13692782137872
142d7b7a934d10
1515ca6c1794c5
hexaeee296aef2

12021120020210 has 32 divisors (see below), whose sum is σ = 24741044790912. Its totient is φ = 4119546263040.

The previous prime is 12021120020183. The next prime is 12021120020213. The reversal of 12021120020210 is 1202002112021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (12021120020213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41115812 + ... + 41407151.

It is an arithmetic number, because the mean of its divisors is an integer number (773157649716).

Almost surely, 212021120020210 is an apocalyptic number.

12021120020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021120020210 is an abundant number, since it is smaller than the sum of its proper divisors (12719924770702).

12021120020210 is a wasteful number, since it uses less digits than its factorization.

12021120020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82525058.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12021120020210 its reverse (1202002112021), we get a palindrome (13223122132231).

The spelling of 12021120020210 in words is "twelve trillion, twenty-one billion, one hundred twenty million, twenty thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 2081 4162 10405 14567 20810 29134 72835 145670 82522963 165045926 412614815 577660741 825229630 1155321482 2888303705 5776607410 171730286003 343460572006 858651430015 1202112002021 1717302860030 2404224004042 6010560010105 12021120020210