12221121110011 has 16 divisors (see below), whose sum is σ = 13436473104000. Its totient is φ = 11023435763200.

The previous prime is 12221121109993. The next prime is 12221121110039. The reversal of 12221121110011 is 11001112112221.

It is a cyclic number.

It is not a de Polignac number, because 12221121110011 - 2²¹ = 12221119012859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221121111011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6027685 + ... + 7795846.

It is an arithmetic number, because the mean of its divisors is an integer number (839779569000).

Almost surely, 2^{12221121110011} is an apocalyptic number.

12221121110011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12221121110011 is a deficient number, since it is larger than the sum of its proper divisors (1215351993989).

12221121110011 is a wasteful number, since it uses less digits than its factorization.

12221121110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13824170.

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

Adding to 12221121110011 its reverse (11001112112221), we get a palindrome (23222233222232).

The spelling of 12221121110011 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred ten thousand, eleven".