12211000011111 has 32 divisors (see below), whose sum is σ = 18054354447360. Its totient is φ = 7278587683200.

The previous prime is 12211000011059. The next prime is 12211000011127. The reversal of 12211000011111 is 11111000011221.

It is not a de Polignac number, because 12211000011111 - 2⁷ = 12211000010983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211000051111) 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, 21131221 + ... + 21701393.

It is an arithmetic number, because the mean of its divisors is an integer number (564198576480).

Almost surely, 2^{12211000011111} is an apocalyptic number.

12211000011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12211000011111 is a deficient number, since it is larger than the sum of its proper divisors (5843354436249).

12211000011111 is a wasteful number, since it uses less digits than its factorization.

12211000011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580887.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12211000011111 its reverse (11111000011221), we get a palindrome (23322000022332).

The spelling of 12211000011111 in words is "twelve trillion, two hundred eleven billion, eleven thousand, one hundred eleven".