12102201121 has 8 divisors (see below), whose sum is σ = 12330273384. Its totient is φ = 11875812480.

The previous prime is 12102201109. The next prime is 12102201131. The reversal of 12102201121 is 12110220121.

12102201121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5827184896 + 6275016225 = 76336^2 + 79215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12102201121 - 2⁹ = 12102200609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406390 + ... + 435151.

It is an arithmetic number, because the mean of its divisors is an integer number (1541284173).

Almost surely, 2^12102201121 is an apocalyptic number.

It is an amenable number.

12102201121 is a deficient number, since it is larger than the sum of its proper divisors (228072263).

12102201121 is an equidigital number, since it uses as much as digits as its factorization.

12102201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841811.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12102201121 its reverse (12110220121), we get a palindrome (24212421242).

The spelling of 12102201121 in words is "twelve billion, one hundred two million, two hundred one thousand, one hundred twenty-one".