12111011201122 has 4 divisors (see below), whose sum is σ = 18166516801686. Its totient is φ = 6055505600560.

The previous prime is 12111011201099. The next prime is 12111011201227. The reversal of 12111011201122 is 22110211011121.

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., 7119723494961 + 4991287706161 = 2668281^2 + 2234119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12111011201096 and 12111011201105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027752800279 + ... + 3027752800282.

Almost surely, 2^{12111011201122} is an apocalyptic number.

12111011201122 is a deficient number, since it is larger than the sum of its proper divisors (6055505600564).

12111011201122 is an equidigital number, since it uses as much as digits as its factorization.

12111011201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055505600563.

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

Adding to 12111011201122 its reverse (22110211011121), we get a palindrome (34221222212243).

The spelling of 12111011201122 in words is "twelve trillion, one hundred eleven billion, eleven million, two hundred one thousand, one hundred twenty-two".