12221210011 has 16 divisors (see below), whose sum is σ = 13171304448. Its totient is φ = 11306433600.

The previous prime is 12221210009. The next prime is 12221210047. The reversal of 12221210011 is 11001212221.

It is a cyclic number.

It is not a de Polignac number, because 12221210011 - 2¹ = 12221210009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221209973 and 12221210000.

It is not an unprimeable number, because it can be changed into a prime (12221210051) 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 15 ways as a sum of consecutive naturals, for example, 1691196 + ... + 1698406.

It is an arithmetic number, because the mean of its divisors is an integer number (823206528).

Almost surely, 2^12221210011 is an apocalyptic number.

12221210011 is a deficient number, since it is larger than the sum of its proper divisors (950094437).

12221210011 is a wasteful number, since it uses less digits than its factorization.

12221210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12221210011 its reverse (11001212221), we get a palindrome (23222422232).

The spelling of 12221210011 in words is "twelve billion, two hundred twenty-one million, two hundred ten thousand, eleven".