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12213103210 = 2571129546937
BaseRepresentation
bin10110101111111010…
…10010101001101010
31011112011002220222221
423113331102221222
5200003023300320
65335521104254
7611436443620
oct132775225152
934464086887
1012213103210
1151a7a84230
12244a18808a
1311c8358cb9
1483c051510
154b73173aa
hex2d7f52a6a

12213103210 has 64 divisors (see below), whose sum is σ = 28353265920. Its totient is φ = 3675409920.

The previous prime is 12213103183. The next prime is 12213103211. The reversal of 12213103210 is 1230131221.

It is a super-2 number, since 2×122131032102 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12213103211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251139 + ... + 295798.

It is an arithmetic number, because the mean of its divisors is an integer number (443019780).

Almost surely, 212213103210 is an apocalyptic number.

12213103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12213103210 is an abundant number, since it is smaller than the sum of its proper divisors (16140162710).

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

12213103210 is a wasteful number, since it uses less digits than its factorization.

12213103210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546991.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12213103210 its reverse (1230131221), we get a palindrome (13443234431).

The spelling of 12213103210 in words is "twelve billion, two hundred thirteen million, one hundred three thousand, two hundred ten".

Divisors: 1 2 5 7 10 11 14 22 29 35 55 58 70 77 110 145 154 203 290 319 385 406 638 770 1015 1595 2030 2233 3190 4466 11165 22330 546937 1093874 2734685 3828559 5469370 6016307 7657118 12032614 15861173 19142795 30081535 31722346 38285590 42114149 60163070 79305865 84228298 111028211 158611730 174472903 210570745 222056422 348945806 421141490 555141055 872364515 1110282110 1221310321 1744729030 2442620642 6106551605 12213103210