12102201017 has 4 divisors (see below), whose sum is σ = 12102456180. Its totient is φ = 12101945856.

The previous prime is 12102200959. The next prime is 12102201037. The reversal of 12102201017 is 71010220121.

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 2616220201 + 9485980816 = 51149^2 + 97396^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102201017 - 2²⁸ = 11833765561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102200986 and 12102201004.

It is not an unprimeable number, because it can be changed into a prime (12102201037) 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 3 ways as a sum of consecutive naturals, for example, 33128 + ... + 159065.

It is an arithmetic number, because the mean of its divisors is an integer number (3025614045).

Almost surely, 2^12102201017 is an apocalyptic number.

It is an amenable number.

12102201017 is a deficient number, since it is larger than the sum of its proper divisors (255163).

12102201017 is an equidigital number, since it uses as much as digits as its factorization.

12102201017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255162.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12102201017 its reverse (71010220121), we get a palindrome (83112421138).

The spelling of 12102201017 in words is "twelve billion, one hundred two million, two hundred one thousand, seventeen".