12221102220111 has 12 divisors (see below), whose sum is σ = 18129803293992. Its totient is φ = 7927201439856.

The previous prime is 12221102220083. The next prime is 12221102220149. The reversal of 12221102220111 is 11102220112221.

12221102220111 is a `hidden beast` number, since 1 + 222 + 110 + 2 + 220 + 111 = 666.

It is not a de Polignac number, because 12221102220111 - 2¹⁷ = 12221102089039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221102220611) 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, 18350003001 + ... + 18350003666.

It is an arithmetic number, because the mean of its divisors is an integer number (1510816941166).

Almost surely, 2^{12221102220111} is an apocalyptic number.

12221102220111 is a deficient number, since it is larger than the sum of its proper divisors (5908701073881).

12221102220111 is a wasteful number, since it uses less digits than its factorization.

12221102220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36700006710 (or 36700006707 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12221102220111 its reverse (11102220112221), we get a palindrome (23323322332332).

The spelling of 12221102220111 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty thousand, one hundred eleven".