12221320011 has 16 divisors (see below), whose sum is σ = 17157571200. Its totient is φ = 7716549888.

The previous prime is 12221319953. The next prime is 12221320021. The reversal of 12221320011 is 11002312221.

12221320011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221320011 - 2⁶ = 12221319947 is a prime.

It is a super-2 number, since 2×12221320011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12221320021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187035 + ... + 243771.

It is an arithmetic number, because the mean of its divisors is an integer number (1072348200).

Almost surely, 2^12221320011 is an apocalyptic number.

12221320011 is a deficient number, since it is larger than the sum of its proper divisors (4936251189).

12221320011 is a wasteful number, since it uses less digits than its factorization.

12221320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60538.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12221320011 its reverse (11002312221), we get a palindrome (23223632232).

The spelling of 12221320011 in words is "twelve billion, two hundred twenty-one million, three hundred twenty thousand, eleven".