11220012120221 has 8 divisors (see below), whose sum is σ = 11340469246080. Its totient is φ = 11099776628592.

The previous prime is 11220012120217. The next prime is 11220012120253. The reversal of 11220012120221 is 12202121002211.

11220012120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11220012120221 - 2² = 11220012120217 is a prime.

It is a super-2 number, since 2×11220012120221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220012120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220012120211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55306766 + ... + 55509263.

It is an arithmetic number, because the mean of its divisors is an integer number (1417558655760).

Almost surely, 2^{11220012120221} is an apocalyptic number.

It is an amenable number.

11220012120221 is a deficient number, since it is larger than the sum of its proper divisors (120457125859).

11220012120221 is a wasteful number, since it uses less digits than its factorization.

11220012120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110817115.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11220012120221 its reverse (12202121002211), we get a palindrome (23422133122432).

The spelling of 11220012120221 in words is "eleven trillion, two hundred twenty billion, twelve million, one hundred twenty thousand, two hundred twenty-one".