11001112323221 has 16 divisors (see below), whose sum is σ = 11243869286400. Its totient is φ = 10758720451200.

The previous prime is 11001112323217. The next prime is 11001112323251. The reversal of 11001112323221 is 12232321110011.

It is a cyclic number.

It is not a de Polignac number, because 11001112323221 - 2² = 11001112323217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001112323193 and 11001112323202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001112323251) 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, 428763425 + ... + 428789081.

It is an arithmetic number, because the mean of its divisors is an integer number (702741830400).

Almost surely, 2^{11001112323221} is an apocalyptic number.

It is an amenable number.

11001112323221 is a deficient number, since it is larger than the sum of its proper divisors (242756963179).

11001112323221 is a wasteful number, since it uses less digits than its factorization.

11001112323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32404.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11001112323221 its reverse (12232321110011), we get a palindrome (23233433433232).

The spelling of 11001112323221 in words is "eleven trillion, one billion, one hundred twelve million, three hundred twenty-three thousand, two hundred twenty-one".