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2002022001220 = 225139720151799
BaseRepresentation
bin11101001000100001110…
…011110110101001000100
321002101120100121011012011
4131020201303312221010
5230300120113014340
64131414411304004
7264432654142243
oct35104163665104
97071510534164
102002022001220
1170206425527a
1228400914b004
13116a364429b7
146cc8123495a
15371257890ea
hex1d221cf6a44

2002022001220 has 24 divisors (see below), whose sum is σ = 4234492584000. Its totient is φ = 795047584992.

The previous prime is 2002022001211. The next prime is 2002022001253. The reversal of 2002022001220 is 221002202002.

It is a self number, because there is not a number n which added to its sum of digits gives 2002022001220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360073120 + ... + 360078679.

It is an arithmetic number, because the mean of its divisors is an integer number (176437191000).

Almost surely, 22002022001220 is an apocalyptic number.

2002022001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002022001220 is an abundant number, since it is smaller than the sum of its proper divisors (2232470582780).

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

2002022001220 is a wasteful number, since it uses less digits than its factorization.

2002022001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720151947 (or 720151945 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2002022001220 its reverse (221002202002), we get a palindrome (2223024203222).

The spelling of 2002022001220 in words is "two trillion, two billion, twenty-two million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 720151799 1440303598 2880607196 3600758995 7201517990 14403035980 100101100061 200202200122 400404400244 500505500305 1001011000610 2002022001220