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2012201202220 = 22511108714535791
BaseRepresentation
bin11101010010000000100…
…010011011001000101100
321010100211202120010212121
4131102000202123020230
5230431442001432340
64140220435042324
7265243136004136
oct35220042331054
97110752503777
102012201202220
11706408136690
12285b8a1403a4
131179992b4461
146d5690c4056
153751e24394a
hex1d48089b22c

2012201202220 has 96 divisors (see below), whose sum is σ = 4617983655936. Its totient is φ = 730407110400.

The previous prime is 2012201202211. The next prime is 2012201202229. The reversal of 2012201202220 is 222021022102.

It is an interprime number because it is at equal distance from previous prime (2012201202211) and next prime (2012201202229).

It is a super-2 number, since 2×20122012022202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2012201202194 and 2012201202203.

It is not an unprimeable number, because it can be changed into a prime (2012201202229) 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, 347467525 + ... + 347473315.

It is an arithmetic number, because the mean of its divisors is an integer number (48103996416).

Almost surely, 22012201202220 is an apocalyptic number.

2012201202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012201202220 is an abundant number, since it is smaller than the sum of its proper divisors (2605782453716).

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

2012201202220 is a wasteful number, since it uses less digits than its factorization.

2012201202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351 (or 8349 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2012201202220 its reverse (222021022102), we get a palindrome (2234222224322).

The spelling of 2012201202220 in words is "two trillion, twelve billion, two hundred one million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1087 1453 2174 2906 4348 5435 5791 5812 7265 10870 11582 11957 14530 15983 21740 23164 23914 28955 29060 31966 47828 57910 59785 63701 63932 79915 115820 119570 127402 159830 239140 254804 318505 319660 637010 1274020 1579411 3158822 6294817 6317644 7897055 8414323 12589634 15794110 16828646 17373521 25179268 31474085 31588220 33657292 34747042 42071615 62948170 69242987 69494084 84143230 86867605 92557553 125896340 138485974 168286460 173735210 185115106 276971948 346214935 347470420 370230212 462787765 692429870 925575530 1384859740 1851151060 9146369101 18292738202 36585476404 45731845505 91463691010 100610060111 182927382020 201220120222 402440240444 503050300555 1006100601110 2012201202220