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12120202111010 = 2572104923579701
BaseRepresentation
bin1011000001011111010001…
…0101110110100000100010
31120220200100201120000110212
42300113310111312200202
53042034133220023020
641435535522254122
72360440623053600
oct260276425664042
946820321500425
1012120202111010
113953170133a14
121438b871b7342
1369bc12720066
142dc899ad6870
1516041a9eacc5
hexb05f4576822

12120202111010 has 48 divisors (see below), whose sum is σ = 25402412964600. Its totient is φ = 4151536300800.

The previous prime is 12120202110917. The next prime is 12120202111081. The reversal of 12120202111010 is 1011120202121.

It can be written as a sum of positive squares in 4 ways, for example, as 11930330148961 + 189871962049 = 3454031^2 + 435743^2 .

It is a super-3 number, since 3×121202021110103 (a number of 40 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11275841 + ... + 12303860.

Almost surely, 212120202111010 is an apocalyptic number.

12120202111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120202111010 is an abundant number, since it is smaller than the sum of its proper divisors (13282210853590).

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

12120202111010 is a wasteful number, since it uses less digits than its factorization.

12120202111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23580771 (or 23580764 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120202111010 its reverse (1011120202121), we get a palindrome (13131322313131).

The spelling of 12120202111010 in words is "twelve trillion, one hundred twenty billion, two hundred two million, one hundred eleven thousand, ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1049 2098 5245 7343 10490 14686 36715 51401 73430 102802 257005 514010 23579701 47159402 117898505 165057907 235797010 330115814 825289535 1155405349 1650579070 2310810698 5777026745 11554053490 24735106349 49470212698 123675531745 173145744443 247351063490 346291488886 865728722215 1212020211101 1731457444430 2424040422202 6060101055505 12120202111010