11011002201221 has 8 divisors (see below), whose sum is σ = 12164053065600. Its totient is φ = 9883293114240.

The previous prime is 11011002201211. The next prime is 11011002201253. The reversal of 11011002201221 is 12210220011011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011002201221 - 2¹⁰ = 11011002200197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11011002201196 and 11011002201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011002201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6335443436 + ... + 6335445173.

It is an arithmetic number, because the mean of its divisors is an integer number (1520506633200).

Almost surely, 2^{11011002201221} is an apocalyptic number.

11011002201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011002201221 is a deficient number, since it is larger than the sum of its proper divisors (1153050864379).

11011002201221 is a wasteful number, since it uses less digits than its factorization.

11011002201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12670888699.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11011002201221 its reverse (12210220011011), we get a palindrome (23221222212232).

The spelling of 11011002201221 in words is "eleven trillion, eleven billion, two million, two hundred one thousand, two hundred twenty-one".