12211012120111 has 16 divisors (see below), whose sum is σ = 14254181415936. Its totient is φ = 10242584282016.

The previous prime is 12211012120067. The next prime is 12211012120127. The reversal of 12211012120111 is 11102121011221.

It is a cyclic number.

It is not a de Polignac number, because 12211012120111 - 2⁹ = 12211012119599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211012120171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229305 + ... + 4947181.

It is an arithmetic number, because the mean of its divisors is an integer number (890886338496).

Almost surely, 2^{12211012120111} is an apocalyptic number.

12211012120111 is a deficient number, since it is larger than the sum of its proper divisors (2043169295825).

12211012120111 is an equidigital number, since it uses as much as digits as its factorization.

12211012120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725798.

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

Adding to 12211012120111 its reverse (11102121011221), we get a palindrome (23313133131332).

The spelling of 12211012120111 in words is "twelve trillion, two hundred eleven billion, twelve million, one hundred twenty thousand, one hundred eleven".