12211044011 has 6 divisors (see below), whose sum is σ = 12765042780. Its totient is φ = 11680128548.

The previous prime is 12211043987. The next prime is 12211044047. The reversal of 12211044011 is 11044011221.

It is not a de Polignac number, because 12211044011 - 2¹⁸ = 12210781867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12211044071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11541101 + ... + 11542158.

It is an arithmetic number, because the mean of its divisors is an integer number (2127507130).

Almost surely, 2^12211044011 is an apocalyptic number.

12211044011 is a deficient number, since it is larger than the sum of its proper divisors (553998769).

12211044011 is an equidigital number, since it uses as much as digits as its factorization.

12211044011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23083305 (or 23083282 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211044011 its reverse (11044011221), we get a palindrome (23255055232).

The spelling of 12211044011 in words is "twelve billion, two hundred eleven million, forty-four thousand, eleven".