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12011220200 = 235278579443
BaseRepresentation
bin10110010111110110…
…01010110011101000
31011000002020012120102
423023323022303220
5144044333021300
65303510044532
7603435454460
oct131373126350
934002205512
1012011220200
115104025571
1223b2649748
1311955928b5
1481d2dcba0
154a473a0d5
hex2cbecace8

12011220200 has 48 divisors (see below), whose sum is σ = 31915531680. Its totient is φ = 4118132160.

The previous prime is 12011220197. The next prime is 12011220223. The reversal of 12011220200 is 202211021.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 4288322 + ... + 4291121.

It is an arithmetic number, because the mean of its divisors is an integer number (664906910).

Almost surely, 212011220200 is an apocalyptic number.

12011220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011220200 is an abundant number, since it is smaller than the sum of its proper divisors (19904311480).

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

12011220200 is a wasteful number, since it uses less digits than its factorization.

12011220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579466 (or 8579457 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12011220200 its reverse (202211021), we get a palindrome (12213431221).

The spelling of 12011220200 in words is "twelve billion, eleven million, two hundred twenty thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1400 8579443 17158886 34317772 42897215 60056101 68635544 85794430 120112202 171588860 214486075 240224404 300280505 343177720 428972150 480448808 600561010 857944300 1201122020 1501402525 1715888600 2402244040 3002805050 6005610100 12011220200