11220303210121 has 2 divisors, whose sum is σ = 11220303210122. Its totient is φ = 11220303210120.

The previous prime is 11220303210101. The next prime is 11220303210139. The reversal of 11220303210121 is 12101230302211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10400554050121 + 819749160000 = 3224989^2 + 905400^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220303210121 - 2⁵ = 11220303210089 is a prime.

It is a super-3 number, since 3×11220303210121³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11220303210101) 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 as a sum of consecutive naturals, namely, 5610151605060 + 5610151605061.

It is an arithmetic number, because the mean of its divisors is an integer number (5610151605061).

Almost surely, 2^{11220303210121} is an apocalyptic number.

It is an amenable number.

11220303210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220303210121 is an equidigital number, since it uses as much as digits as its factorization.

11220303210121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11220303210121 its reverse (12101230302211), we get a palindrome (23321533512332).

The spelling of 11220303210121 in words is "eleven trillion, two hundred twenty billion, three hundred three million, two hundred ten thousand, one hundred twenty-one".