12122611201 has 4 divisors (see below), whose sum is σ = 12185422852. Its totient is φ = 12059799552.

The previous prime is 12122611187. The next prime is 12122611229. The reversal of 12122611201 is 10211622121.

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 3982241025 + 8140370176 = 63105^2 + 90224^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122611201 - 2²⁵ = 12089056769 is a prime.

It is a super-2 number, since 2×12122611201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122611261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31405536 + ... + 31405921.

It is an arithmetic number, because the mean of its divisors is an integer number (3046355713).

Almost surely, 2^12122611201 is an apocalyptic number.

It is an amenable number.

12122611201 is a deficient number, since it is larger than the sum of its proper divisors (62811651).

12122611201 is an equidigital number, since it uses as much as digits as its factorization.

12122611201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62811650.

The product of its (nonzero) digits is 96, while the sum is 19.

The spelling of 12122611201 in words is "twelve billion, one hundred twenty-two million, six hundred eleven thousand, two hundred one".