12111211001122 has 16 divisors (see below), whose sum is σ = 18277466413752. Its totient is φ = 6018759855360.

The previous prime is 12111211001117. The next prime is 12111211001143. The reversal of 12111211001122 is 22110011211121.

It can be written as a sum of positive squares in 4 ways, for example, as 9957628336041 + 2153582665081 = 3155571^2 + 1467509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12111211001096 and 12111211001105.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 8770453 + ... + 10057000.

Almost surely, 2^{12111211001122} is an apocalyptic number.

12111211001122 is a deficient number, since it is larger than the sum of its proper divisors (6166255412630).

12111211001122 is a wasteful number, since it uses less digits than its factorization.

12111211001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18829413.

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

Adding to 12111211001122 its reverse (22110011211121), we get a palindrome (34221222212243).

The spelling of 12111211001122 in words is "twelve trillion, one hundred eleven billion, two hundred eleven million, one thousand, one hundred twenty-two".