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12002012211020 = 2251359782399753
BaseRepresentation
bin1010111010100110111110…
…1011001010011101001100
31120111101021212102000101112
42232221233223022131030
53033120110111223040
641305352010431152
72346055023352646
oct256515753123514
946441255360345
1012002012211020
113908030001817
12141a0a17324b8
13690a28550cb0
142d6c86d35896
1515c2ee8e6365
hexaea6faca74c

12002012211020 has 48 divisors (see below), whose sum is σ = 27603063321120. Its totient is φ = 4356401819136.

The previous prime is 12002012211019. The next prime is 12002012211113. The reversal of 12002012211020 is 2011221020021.

It is a super-2 number, since 2×120020122110202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12002012210986 and 12002012211004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391184537 + ... + 391215216.

It is an arithmetic number, because the mean of its divisors is an integer number (575063819190).

Almost surely, 212002012211020 is an apocalyptic number.

12002012211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002012211020 is an abundant number, since it is smaller than the sum of its proper divisors (15601051110100).

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

12002012211020 is a wasteful number, since it uses less digits than its factorization.

12002012211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782399834 (or 782399832 counting only the distinct ones).

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

Adding to 12002012211020 its reverse (2011221020021), we get a palindrome (14013233231041).

The spelling of 12002012211020 in words is "twelve trillion, two billion, twelve million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 59 65 118 130 236 260 295 590 767 1180 1534 3068 3835 7670 15340 782399753 1564799506 3129599012 3911998765 7823997530 10171196789 15647995060 20342393578 40684787156 46161585427 50855983945 92323170854 101711967890 184646341708 203423935780 230807927135 461615854270 600100610551 923231708540 1200201221102 2400402442204 3000503052755 6001006105510 12002012211020