12011212213311 has 32 divisors (see below), whose sum is σ = 16685869268160. Its totient is φ = 7681026355200.

The previous prime is 12011212213289. The next prime is 12011212213331. The reversal of 12011212213311 is 11331221211021.

It is not a de Polignac number, because 12011212213311 - 2⁹ = 12011212212799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011212213331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3862230 + ... + 6240131.

It is an arithmetic number, because the mean of its divisors is an integer number (521433414630).

Almost surely, 2^{12011212213311} is an apocalyptic number.

12011212213311 is a deficient number, since it is larger than the sum of its proper divisors (4674657054849).

12011212213311 is a wasteful number, since it uses less digits than its factorization.

12011212213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102587.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12011212213311 its reverse (11331221211021), we get a palindrome (23342433424332).

The spelling of 12011212213311 in words is "twelve trillion, eleven billion, two hundred twelve million, two hundred thirteen thousand, three hundred eleven".