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12201202101020 = 2255711106821941
BaseRepresentation
bin1011000110001101000001…
…0100010010101100011100
31121012102102202022211212212
42301203100110102230130
53044401030214213040
641541053241215552
72366336106445142
oct261432024225434
947172382284785
1012201202101020
113984556557319
121450811a915b8
136a6750a8a62a
143027815b9592
151625abb97d65
hexb18d0512b1c

12201202101020 has 24 divisors (see below), whose sum is σ = 25627011173568. Its totient is φ = 4879626219200.

The previous prime is 12201202101001. The next prime is 12201202101029. The reversal of 12201202101020 is 2010120210221.

It is a junction number, because it is equal to n+sod(n) for n = 12201202100986 and 12201202101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201202101029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53296751 + ... + 53525190.

It is an arithmetic number, because the mean of its divisors is an integer number (1067792132232).

Almost surely, 212201202101020 is an apocalyptic number.

12201202101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201202101020 is an abundant number, since it is smaller than the sum of its proper divisors (13425809072548).

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

12201202101020 is a wasteful number, since it uses less digits than its factorization.

12201202101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106827661 (or 106827659 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12201202101020 its reverse (2010120210221), we get a palindrome (14211322311241).

The spelling of 12201202101020 in words is "twelve trillion, two hundred one billion, two hundred two million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 5711 11422 22844 28555 57110 114220 106821941 213643882 427287764 534109705 1068219410 2136438820 610060105051 1220120210102 2440240420204 3050300525255 6100601050510 12201202101020