12242221011 has 20 divisors (see below), whose sum is σ = 18291641632. Its totient is φ = 8159749488.

The previous prime is 12242220941. The next prime is 12242221049. The reversal of 12242221011 is 11012224221.

12242221011 is a `hidden beast` number, since 1 + 22 + 422 + 210 + 11 = 666.

It is not a de Polignac number, because 12242221011 - 2⁷ = 12242220883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12242221051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 452025 + ... + 478341.

Almost surely, 2^12242221011 is an apocalyptic number.

12242221011 is a deficient number, since it is larger than the sum of its proper divisors (6049420621).

12242221011 is an equidigital number, since it uses as much as digits as its factorization.

12242221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32072 (or 32063 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12242221011 its reverse (11012224221), we get a palindrome (23254445232).

The spelling of 12242221011 in words is "twelve billion, two hundred forty-two million, two hundred twenty-one thousand, eleven".