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12229203001 = 66611835941
BaseRepresentation
bin10110110001110101…
…01101010000111001
31011120021101212202111
423120322231100321
5200021133444001
65341254132321
7612023340031
oct133072552071
934507355674
1012229203001
115206080244
1224536510a1
1311cb7a50c2
148402428c1
154b8947851
hex2d8ead439

12229203001 has 4 divisors (see below), whose sum is σ = 12231045604. Its totient is φ = 12227360400.

The previous prime is 12229202983. The next prime is 12229203013. The reversal of 12229203001 is 10030292221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6154559401 + 6074643600 = 78451^2 + 77940^2 .

It is a cyclic number.

It is not a de Polignac number, because 12229203001 - 25 = 12229202969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12229203061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911310 + ... + 924631.

It is an arithmetic number, because the mean of its divisors is an integer number (3057761401).

Almost surely, 212229203001 is an apocalyptic number.

It is an amenable number.

12229203001 is a deficient number, since it is larger than the sum of its proper divisors (1842603).

12229203001 is an equidigital number, since it uses as much as digits as its factorization.

12229203001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842602.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12229203001 its reverse (10030292221), we get a palindrome (22259495222).

The spelling of 12229203001 in words is "twelve billion, two hundred twenty-nine million, two hundred three thousand, one".

Divisors: 1 6661 1835941 12229203001