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12010200220 = 225797753463
BaseRepresentation
bin10110010111101110…
…10001110010011100
31011000000022101102101
423023313101302130
5144044102401340
65303432134444
7603424005664
oct131367216234
934000271371
1012010200220
115103499207
1223b2237424
1311952c6565
1481d1151a4
154a45d7c9a
hex2cbdd1c9c

12010200220 has 24 divisors (see below), whose sum is σ = 25253099424. Its totient is φ = 4798046016.

The previous prime is 12010200199. The next prime is 12010200227. The reversal of 12010200220 is 2200201021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12010200197 and 12010200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010200227) by changing a digit.

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, 360792 + ... + 392671.

It is an arithmetic number, because the mean of its divisors is an integer number (1052212476).

Almost surely, 212010200220 is an apocalyptic number.

12010200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010200220 is an abundant number, since it is smaller than the sum of its proper divisors (13242899204).

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

12010200220 is a wasteful number, since it uses less digits than its factorization.

12010200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754269 (or 754267 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12010200220 its reverse (2200201021), we get a palindrome (14210401241).

The spelling of 12010200220 in words is "twelve billion, ten million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 797 1594 3188 3985 7970 15940 753463 1506926 3013852 3767315 7534630 15069260 600510011 1201020022 2402040044 3002550055 6005100110 12010200220