12010220111 has 2 divisors, whose sum is σ = 12010220112. Its totient is φ = 12010220110.

The previous prime is 12010220107. The next prime is 12010220147. The reversal of 12010220111 is 11102201021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12010220111 - 2² = 12010220107 is a prime.

It is a super-2 number, since 2×12010220111² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12010220092 and 12010220101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12010220161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005110055 + 6005110056.

It is an arithmetic number, because the mean of its divisors is an integer number (6005110056).

Almost surely, 2^12010220111 is an apocalyptic number.

12010220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010220111 is an equidigital number, since it uses as much as digits as its factorization.

12010220111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12010220111 its reverse (11102201021), we get a palindrome (23112421132).

The spelling of 12010220111 in words is "twelve billion, ten million, two hundred twenty thousand, one hundred eleven".