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12201010001 is a prime number
BaseRepresentation
bin10110101110011110…
…01010001101010001
31011111022100112020022
423113033022031101
5144441424310001
65334405553225
7611231605505
oct132717121521
934438315208
1012201010001
1151a1174444
122446115815
1311c59b375b
1483a5c4305
154b622911b
hex2d73ca351

12201010001 has 2 divisors, whose sum is σ = 12201010002. Its totient is φ = 12201010000.

The previous prime is 12201009959. The next prime is 12201010021. The reversal of 12201010001 is 10001010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7871238400 + 4329771601 = 88720^2 + 65801^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201010001 - 218 = 12200747857 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201010021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100505000 + 6100505001.

It is an arithmetic number, because the mean of its divisors is an integer number (6100505001).

Almost surely, 212201010001 is an apocalyptic number.

It is an amenable number.

12201010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201010001 is an equidigital number, since it uses as much as digits as its factorization.

12201010001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12201010001 its reverse (10001010221), we get a palindrome (22202020222).

The spelling of 12201010001 in words is "twelve billion, two hundred one million, ten thousand, one".