12222121210011 has 24 divisors (see below), whose sum is σ = 19015512950720. Its totient is φ = 7539717363696.

The previous prime is 12222121210009. The next prime is 12222121210069. The reversal of 12222121210011 is 11001212122221.

12222121210011 is a `hidden beast` number, since 122 + 221 + 212 + 100 + 11 = 666.

It is not a de Polignac number, because 12222121210011 - 2¹ = 12222121210009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222121211011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 831090241 + ... + 831104946.

Almost surely, 2^{12222121210011} is an apocalyptic number.

12222121210011 is a deficient number, since it is larger than the sum of its proper divisors (6793391740709).

12222121210011 is a wasteful number, since it uses less digits than its factorization.

12222121210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662195255 (or 1662195252 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12222121210011 its reverse (11001212122221), we get a palindrome (23223333332232).

The spelling of 12222121210011 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, eleven".