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211002012012210 = 23523865613532769
BaseRepresentation
bin101111111110011110111011…
…111110010000111010110010
31000200002121002000020112202120
4233332132323332100322302
5210124024110033342320
62024432553001255110
762305251362363016
oct5776367376207262
91020077060215676
10211002012012210
11612604a5a73871
121b7b972aa94496
1390975344a49b3
143a167a24a0546
15195d9a71d0440
hexbfe7bbf90eb2

211002012012210 has 64 divisors (see below), whose sum is σ = 528428684286720. Its totient is φ = 53820166062080.

The previous prime is 211002012012179. The next prime is 211002012012227. The reversal of 211002012012210 is 12210210200112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211002012012210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57960706 + ... + 61493474.

It is an arithmetic number, because the mean of its divisors is an integer number (8256698191980).

Almost surely, 2211002012012210 is an apocalyptic number.

211002012012210 is an abundant number, since it is smaller than the sum of its proper divisors (317426672274510).

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

211002012012210 is a wasteful number, since it uses less digits than its factorization.

211002012012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619363.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211002012012210 its reverse (12210210200112), we get a palindrome (223212222212322).

The spelling of 211002012012210 in words is "two hundred eleven trillion, two billion, twelve million, twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 86561 173122 259683 432805 519366 865610 1298415 1990903 2596830 3532769 3981806 5972709 7065538 9954515 10598307 11945418 17663845 19909030 21196614 29863545 35327690 52991535 59727090 81253687 105983070 162507374 243761061 406268435 487522122 812536870 1218805305 2437610610 305800017409 611600034818 917400052227 1529000087045 1834800104454 3058000174090 4587000261135 7033400400407 9174000522270 14066800800814 21100201201221 35167002002035 42200402402442 70334004004070 105501006006105 211002012012210