12211201111011 has 12 divisors (see below), whose sum is σ = 18939822131592. Its totient is φ = 6977829206208.

The previous prime is 12211201111007. The next prime is 12211201111073. The reversal of 12211201111011 is 11011110211221.

It is not a de Polignac number, because 12211201111011 - 2² = 12211201111007 is a prime.

It is a super-2 number, since 2×12211201111011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211201110011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41534697510 + ... + 41534697803.

It is an arithmetic number, because the mean of its divisors is an integer number (1578318510966).

Almost surely, 2^{12211201111011} is an apocalyptic number.

12211201111011 is a deficient number, since it is larger than the sum of its proper divisors (6728621020581).

12211201111011 is an equidigital number, since it uses as much as digits as its factorization.

12211201111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83069395330 (or 83069395323 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12211201111011 its reverse (11011110211221), we get a palindrome (23222311322232).

The spelling of 12211201111011 in words is "twelve trillion, two hundred eleven billion, two hundred one million, one hundred eleven thousand, eleven".