12111012122201 has 4 divisors (see below), whose sum is σ = 12368693231232. Its totient is φ = 11853331013172.

The previous prime is 12111012122197. The next prime is 12111012122219. The reversal of 12111012122201 is 10222121011121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12111012122201 - 2² = 12111012122197 is a prime.

It is a super-3 number, since 3×12111012122201³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12111012122201.

It is not an unprimeable number, because it can be changed into a prime (12111012122101) 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, 128840554445 + ... + 128840554538.

It is an arithmetic number, because the mean of its divisors is an integer number (3092173307808).

Almost surely, 2^{12111012122201} is an apocalyptic number.

It is an amenable number.

12111012122201 is a deficient number, since it is larger than the sum of its proper divisors (257681109031).

12111012122201 is an equidigital number, since it uses as much as digits as its factorization.

12111012122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257681109030.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12111012122201 its reverse (10222121011121), we get a palindrome (22333133133322).

The spelling of 12111012122201 in words is "twelve trillion, one hundred eleven billion, twelve million, one hundred twenty-two thousand, two hundred one".