12211210011 has 192 divisors, whose sum is σ = 23076644864. Its totient is φ = 5583790080.

The previous prime is 12211210009. The next prime is 12211210043. The reversal of 12211210011 is 11001211221.

It is not a de Polignac number, because 12211210011 - 2¹ = 12211210009 is a prime.

It is a super-2 number, since 2×12211210011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211210511) 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 191 ways as a sum of consecutive naturals, for example, 118555386 + ... + 118555488.

Almost surely, 2^12211210011 is an apocalyptic number.

12211210011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12211210011 is a deficient number, since it is larger than the sum of its proper divisors (10865434853).

12211210011 is a wasteful number, since it uses less digits than its factorization.

12211210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12211210011 its reverse (11001211221), we get a palindrome (23212421232).

It can be divided in two parts, 12211 and 210011, that added together give a palindrome (222222).

The spelling of 12211210011 in words is "twelve billion, two hundred eleven million, two hundred ten thousand, eleven".