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12102202110220 = 225605110105511
BaseRepresentation
bin1011000000011100001101…
…1101010011000100001100
31120211221220021101020100221
42300013003131103010030
53041240302220011340
641423401440001124
72356232564426305
oct260070335230414
946757807336327
1012102202110220
113946573650a02
1214355a30001a4
1369a3044bc311
142dba6d2a97ac
1515ec1564244a
hexb01c375310c

12102202110220 has 12 divisors (see below), whose sum is σ = 25414624431504. Its totient is φ = 4840880844080.

The previous prime is 12102202110217. The next prime is 12102202110221. The reversal of 12102202110220 is 2201120220121.

It is a happy number.

It is a super-2 number, since 2×121022021102202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102202110194 and 12102202110203.

It is not an unprimeable number, because it can be changed into a prime (12102202110221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302555052736 + ... + 302555052775.

It is an arithmetic number, because the mean of its divisors is an integer number (2117885369292).

Almost surely, 212102202110220 is an apocalyptic number.

12102202110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102202110220 is an abundant number, since it is smaller than the sum of its proper divisors (13312422321284).

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

12102202110220 is a wasteful number, since it uses less digits than its factorization.

12102202110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605110105520 (or 605110105518 counting only the distinct ones).

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

Adding to 12102202110220 its reverse (2201120220121), we get a palindrome (14303322330341).

The spelling of 12102202110220 in words is "twelve trillion, one hundred two billion, two hundred two million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 605110105511 1210220211022 2420440422044 3025550527555 6051101055110 12102202110220