12021111211103 has 4 divisors (see below), whose sum is σ = 12021165357048. Its totient is φ = 12021057065160.

The previous prime is 12021111211027. The next prime is 12021111211111. The reversal of 12021111211103 is 30111211112021.

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 12021111211103 - 2⁸ = 12021111210847 is a prime.

It is a super-2 number, since 2×12021111211103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021111211183) 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, 26738576 + ... + 27184437.

It is an arithmetic number, because the mean of its divisors is an integer number (3005291339262).

Almost surely, 2^{12021111211103} is an apocalyptic number.

12021111211103 is a deficient number, since it is larger than the sum of its proper divisors (54145945).

12021111211103 is an equidigital number, since it uses as much as digits as its factorization.

12021111211103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54145944.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12021111211103 its reverse (30111211112021), we get a palindrome (42132322323124).

The spelling of 12021111211103 in words is "twelve trillion, twenty-one billion, one hundred eleven million, two hundred eleven thousand, one hundred three".