12010101220111 has 16 divisors (see below), whose sum is σ = 12499569561600. Its totient is φ = 11531212047328.

The previous prime is 12010101220109. The next prime is 12010101220121. The reversal of 12010101220111 is 11102210101021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12010101220111 - 2¹ = 12010101220109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010101220091 and 12010101220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010101220121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3192700 + ... + 5849233.

It is an arithmetic number, because the mean of its divisors is an integer number (781223097600).

Almost surely, 2^{12010101220111} is an apocalyptic number.

12010101220111 is a deficient number, since it is larger than the sum of its proper divisors (489468341489).

12010101220111 is an equidigital number, since it uses as much as digits as its factorization.

12010101220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042518.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12010101220111 its reverse (11102210101021), we get a palindrome (23112311321132).

The spelling of 12010101220111 in words is "twelve trillion, ten billion, one hundred one million, two hundred twenty thousand, one hundred eleven".