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2002010201220 = 2235131254708677
BaseRepresentation
bin11101001000100001000…
…110110101110010000100
321002101112112101122122010
4131020201012311302010
5230300104102414340
64131413310334220
7264432451635021
oct35104106656204
97071475348563
102002010201220
11702058625807
122840051ba370
13116a33b70a53
146cc7d842548
1537124707b80
hex1d2211b5c84

2002010201220 has 48 divisors (see below), whose sum is σ = 5648419643328. Its totient is φ = 529794046080.

The previous prime is 2002010201197. The next prime is 2002010201231. The reversal of 2002010201220 is 221020102002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2002010201196 and 2002010201205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127346479 + ... + 127362198.

It is an arithmetic number, because the mean of its divisors is an integer number (117675409236).

Almost surely, 22002010201220 is an apocalyptic number.

2002010201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002010201220 is an abundant number, since it is smaller than the sum of its proper divisors (3646409442108).

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

2002010201220 is a wasteful number, since it uses less digits than its factorization.

2002010201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254708820 (or 254708818 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2002010201220 its reverse (221020102002), we get a palindrome (2223030303222).

The spelling of 2002010201220 in words is "two trillion, two billion, ten million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 131 262 393 524 655 786 1310 1572 1965 2620 3930 7860 254708677 509417354 764126031 1018834708 1273543385 1528252062 2547086770 3056504124 3820630155 5094173540 7641260310 15282520620 33366836687 66733673374 100100510061 133467346748 166834183435 200201020122 333668366870 400402040244 500502550305 667336733740 1001005100610 2002010201220