12010211011 has 4 divisors (see below), whose sum is σ = 12642327400. Its totient is φ = 11378094624.

The previous prime is 12010211009. The next prime is 12010211023. The reversal of 12010211011 is 11011201021.

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 12010211011 - 2¹ = 12010211009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010241011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316058166 + ... + 316058203.

It is an arithmetic number, because the mean of its divisors is an integer number (3160581850).

Almost surely, 2^12010211011 is an apocalyptic number.

12010211011 is a deficient number, since it is larger than the sum of its proper divisors (632116389).

12010211011 is an equidigital number, since it uses as much as digits as its factorization.

12010211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632116388.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12010211011 its reverse (11011201021), we get a palindrome (23021412032).

The spelling of 12010211011 in words is "twelve billion, ten million, two hundred eleven thousand, eleven".