12011001222011 has 4 divisors (see below), whose sum is σ = 13102910424024. Its totient is φ = 10919092020000.

The previous prime is 12011001221977. The next prime is 12011001222019. The reversal of 12011001222011 is 11022210011021.

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

It is a cyclic number.

It is not a de Polignac number, because 12011001222011 - 2²⁶ = 12010934113147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011001222019) 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, 545954600990 + ... + 545954601011.

It is an arithmetic number, because the mean of its divisors is an integer number (3275727606006).

Almost surely, 2^{12011001222011} is an apocalyptic number.

12011001222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011001222011 is a deficient number, since it is larger than the sum of its proper divisors (1091909202013).

12011001222011 is a wasteful number, since it uses less digits than its factorization.

12011001222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091909202012.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011001222011 its reverse (11022210011021), we get a palindrome (23033211233032).

The spelling of 12011001222011 in words is "twelve trillion, eleven billion, one million, two hundred twenty-two thousand, eleven".