12221211002111 has 4 divisors (see below), whose sum is σ = 12230995800000. Its totient is φ = 12211426204224.

The previous prime is 12221211002069. The next prime is 12221211002159. The reversal of 12221211002111 is 11120011212221.

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 12221211002111 - 2³⁴ = 12204031132927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221211002111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221211082111) 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, 4892397071 + ... + 4892399568.

It is an arithmetic number, because the mean of its divisors is an integer number (3057748950000).

Almost surely, 2^{12221211002111} is an apocalyptic number.

12221211002111 is a deficient number, since it is larger than the sum of its proper divisors (9784797889).

12221211002111 is an equidigital number, since it uses as much as digits as its factorization.

12221211002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784797888.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12221211002111 its reverse (11120011212221), we get a palindrome (23341222214332).

The spelling of 12221211002111 in words is "twelve trillion, two hundred twenty-one billion, two hundred eleven million, two thousand, one hundred eleven".