11220211003121 has 2 divisors, whose sum is σ = 11220211003122. Its totient is φ = 11220211003120.

The previous prime is 11220211003021. The next prime is 11220211003159. The reversal of 11220211003121 is 12130011202211.

It is a happy number.

11220211003121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11208193362496 + 12017640625 = 3347864^2 + 109625^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220211003121 - 2²² = 11220206808817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11220211003121.

It is not a weakly prime, because it can be changed into another prime (11220211003021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610105501560 + 5610105501561.

It is an arithmetic number, because the mean of its divisors is an integer number (5610105501561).

Almost surely, 2^{11220211003121} is an apocalyptic number.

It is an amenable number.

11220211003121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220211003121 is an equidigital number, since it uses as much as digits as its factorization.

11220211003121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11220211003121 its reverse (12130011202211), we get a palindrome (23350222205332).

The spelling of 11220211003121 in words is "eleven trillion, two hundred twenty billion, two hundred eleven million, three thousand, one hundred twenty-one".