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2220221000987 = 112310531833309
BaseRepresentation
bin100000010011101111011…
…110111110110100011011
321212020210000111211001222
4200103233132332310123
5242334003034012422
64415542213202255
7316256101061513
oct40235736766433
97766700454058
102220221000987
11786654968350
122ba36363038b
1313149ac89392
1479660344843
153cb467c4842
hex204ef7bed1b

2220221000987 has 16 divisors (see below), whose sum is σ = 2527609224960. Its totient is φ = 1930441312800.

The previous prime is 2220221000951. The next prime is 2220221000993. The reversal of 2220221000987 is 7890001220222.

It is not a de Polignac number, because 2220221000987 - 26 = 2220221000923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220221000087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2247689 + ... + 3080997.

It is an arithmetic number, because the mean of its divisors is an integer number (157975576560).

Almost surely, 22220221000987 is an apocalyptic number.

2220221000987 is a deficient number, since it is larger than the sum of its proper divisors (307388223973).

2220221000987 is a wasteful number, since it uses less digits than its factorization.

2220221000987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843874.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 2220221000987 in words is "two trillion, two hundred twenty billion, two hundred twenty-one million, nine hundred eighty-seven", and thus it is an aban number.

Divisors: 1 11 23 253 10531 115841 242213 833309 2664343 9166399 19166107 210827177 8775577079 96531347869 201838272817 2220221000987