11210021032121 has 2 divisors, whose sum is σ = 11210021032122. Its totient is φ = 11210021032120.

The previous prime is 11210021032087. The next prime is 11210021032159. The reversal of 11210021032121 is 12123012001211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9740921892025 + 1469099140096 = 3121045^2 + 1212064^2 .

It is a cyclic number.

It is not a de Polignac number, because 11210021032121 - 2²⁶ = 11209953923257 is a prime.

It is a super-2 number, since 2×11210021032121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11210021032121.

It is not a weakly prime, because it can be changed into another prime (11210021032621) 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 as a sum of consecutive naturals, namely, 5605010516060 + 5605010516061.

It is an arithmetic number, because the mean of its divisors is an integer number (5605010516061).

Almost surely, 2^{11210021032121} is an apocalyptic number.

It is an amenable number.

11210021032121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210021032121 is an equidigital number, since it uses as much as digits as its factorization.

11210021032121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11210021032121 its reverse (12123012001211), we get a palindrome (23333033033332).

The spelling of 11210021032121 in words is "eleven trillion, two hundred ten billion, twenty-one million, thirty-two thousand, one hundred twenty-one".