12021223210111 has 2 divisors, whose sum is σ = 12021223210112. Its totient is φ = 12021223210110.

The previous prime is 12021223210039. The next prime is 12021223210127. The reversal of 12021223210111 is 11101232212021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12021223210111 - 2³⁹ = 11471467396223 is a prime.

It is a super-2 number, since 2×12021223210111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12091223210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010611605055 + 6010611605056.

It is an arithmetic number, because the mean of its divisors is an integer number (6010611605056).

Almost surely, 2^{12021223210111} is an apocalyptic number.

12021223210111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021223210111 is an equidigital number, since it uses as much as digits as its factorization.

12021223210111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12021223210111 its reverse (11101232212021), we get a palindrome (23122455422132).

The spelling of 12021223210111 in words is "twelve trillion, twenty-one billion, two hundred twenty-three million, two hundred ten thousand, one hundred eleven".