12111001001122 has 4 divisors (see below), whose sum is σ = 18166501501686. Its totient is φ = 6055500500560.

The previous prime is 12111001001111. The next prime is 12111001001123. The reversal of 12111001001122 is 22110010011121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6235763116801 + 5875237884321 = 2497151^2 + 2423889^2 .

It is not an unprimeable number, because it can be changed into a prime (12111001001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027750250279 + ... + 3027750250282.

Almost surely, 2^{12111001001122} is an apocalyptic number.

12111001001122 is a deficient number, since it is larger than the sum of its proper divisors (6055500500564).

12111001001122 is an equidigital number, since it uses as much as digits as its factorization.

12111001001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055500500563.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12111001001122 its reverse (22110010011121), we get a palindrome (34221011012243).

Subtracting 12111001001122 from its reverse (22110010011121), we obtain a palindrome (9999009009999).

The spelling of 12111001001122 in words is "twelve trillion, one hundred eleven billion, one million, one thousand, one hundred twenty-two".