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12210001102001 = 79537153513473
BaseRepresentation
bin1011000110101101110011…
…0001110100010010110001
31121020021010222012102002002
42301223130301310102301
53100022040240231001
641545110322303345
72400100131641213
oct261533461642261
947207128172062
1012210001102001
113988261342a5a
1214524687b7b55
136a75239c39a1
14302d7802c5b3
151629243be46b
hexb1adcc744b1

12210001102001 has 4 divisors (see below), whose sum is σ = 12210154695012. Its totient is φ = 12209847508992.

The previous prime is 12210001101989. The next prime is 12210001102027. The reversal of 12210001102001 is 10020110001221.

12210001102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9144696960400 + 3065304141601 = 3024020^2 + 1750801^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210001102001 - 26 = 12210001101937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210001102051) 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, 76677200 + ... + 76836273.

It is an arithmetic number, because the mean of its divisors is an integer number (3052538673753).

Almost surely, 212210001102001 is an apocalyptic number.

It is an amenable number.

12210001102001 is a deficient number, since it is larger than the sum of its proper divisors (153593011).

12210001102001 is an equidigital number, since it uses as much as digits as its factorization.

12210001102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153593010.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12210001102001 its reverse (10020110001221), we get a palindrome (22230111103222).

The spelling of 12210001102001 in words is "twelve trillion, two hundred ten billion, one million, one hundred two thousand, one".

Divisors: 1 79537 153513473 12210001102001