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2220000000012 = 223261666666667
BaseRepresentation
bin100000010011100010010…
…011111011100000001100
321212020012121122210201200
4200103202103323200030
5242333030000000022
64415504240305500
7316250445436014
oct40234223734014
97766177583650
102220000000012
11786551141013
122ba301612290
1313146425b182
147963cc56c44
153cb321bcbac
hex204e24fb80c

2220000000012 has 18 divisors (see below), whose sum is σ = 5611666666788. Its totient is φ = 739999999992.

The previous prime is 2219999999989. The next prime is 2220000000079. The reversal of 2220000000012 is 2100000000222.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2219999999931 and 2220000000003.

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 5 ways as a sum of consecutive naturals, for example, 30833333298 + ... + 30833333369.

It is an arithmetic number, because the mean of its divisors is an integer number (311759259266).

Almost surely, 22220000000012 is an apocalyptic number.

It is an amenable number.

2220000000012 is an abundant number, since it is smaller than the sum of its proper divisors (3391666666776).

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

2220000000012 is a wasteful number, since it uses less digits than its factorization.

2220000000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61666666677 (or 61666666672 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 2220000000012 its reverse (2100000000222), we get a palindrome (4320000000234).

The spelling of 2220000000012 in words is "two trillion, two hundred twenty billion, twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 9 12 18 36 61666666667 123333333334 185000000001 246666666668 370000000002 555000000003 740000000004 1110000000006 2220000000012