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12120212020210 = 25710110915727667
BaseRepresentation
bin1011000001011111010011…
…1011101001101111110010
31120220200101102012110100021
42300113310323221233302
53042034143234121320
641435540514514054
72360441103224440
oct260276473515762
946820342173307
1012120212020210
113953175791938
121438b8a59592a
1369bc147ac4a8
142dc89b155b90
1516041b806daa
hexb05f4ee9bf2

12120212020210 has 64 divisors (see below), whose sum is σ = 25410878634240. Its totient is φ = 4076611027200.

The previous prime is 12120212020193. The next prime is 12120212020249. The reversal of 12120212020210 is 1202021202121.

It is a happy number.

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, 7093204 + ... + 8634463.

It is an arithmetic number, because the mean of its divisors is an integer number (397044978660).

Almost surely, 212120212020210 is an apocalyptic number.

12120212020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120212020210 is an abundant number, since it is smaller than the sum of its proper divisors (13290666614030).

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

12120212020210 is a wasteful number, since it uses less digits than its factorization.

12120212020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727891.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120212020210 its reverse (1202021202121), we get a palindrome (13322233222331).

The spelling of 12120212020210 in words is "twelve trillion, one hundred twenty billion, two hundred twelve million, twenty thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 101 109 202 218 505 545 707 763 1010 1090 1414 1526 3535 3815 7070 7630 11009 22018 55045 77063 110090 154126 385315 770630 15727667 31455334 78638335 110093669 157276670 220187338 550468345 1100936690 1588494367 1714315703 3176988734 3428631406 7942471835 8571578515 11119460569 12000209921 15884943670 17143157030 22238921138 24000419842 55597302845 60001049605 111194605690 120002099210 173145886003 346291772006 865729430015 1212021202021 1731458860030 2424042404042 6060106010105 12120212020210