12212100011 has 4 divisors (see below), whose sum is σ = 12212327400. Its totient is φ = 12211872624.

The previous prime is 12212100007. The next prime is 12212100029. The reversal of 12212100011 is 11000121221.

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 12212100011 - 2² = 12212100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212099965 and 12212100001.

It is not an unprimeable number, because it can be changed into a prime (12212100031) 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 3 ways as a sum of consecutive naturals, for example, 16760 + ... + 157178.

It is an arithmetic number, because the mean of its divisors is an integer number (3053081850).

Almost surely, 2^12212100011 is an apocalyptic number.

12212100011 is a deficient number, since it is larger than the sum of its proper divisors (227389).

12212100011 is an equidigital number, since it uses as much as digits as its factorization.

12212100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227388.

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

Adding to 12212100011 its reverse (11000121221), we get a palindrome (23212221232).

The spelling of 12212100011 in words is "twelve billion, two hundred twelve million, one hundred thousand, eleven".