11210001125221 has 2 divisors, whose sum is σ = 11210001125222. Its totient is φ = 11210001125220.

The previous prime is 11210001125203. The next prime is 11210001125227. The reversal of 11210001125221 is 12252110001211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10727655596100 + 482345529121 = 3275310^2 + 694511^2 .

It is an emirp because it is prime and its reverse (12252110001211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11210001125221 - 2¹⁵ = 11210001092453 is a prime.

It is a super-2 number, since 2×11210001125221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210001125227) 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, 5605000562610 + 5605000562611.

It is an arithmetic number, because the mean of its divisors is an integer number (5605000562611).

Almost surely, 2^{11210001125221} is an apocalyptic number.

It is an amenable number.

11210001125221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210001125221 is an equidigital number, since it uses as much as digits as its factorization.

11210001125221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 11210001125221 its reverse (12252110001211), we get a palindrome (23462111126432).

The spelling of 11210001125221 in words is "eleven trillion, two hundred ten billion, one million, one hundred twenty-five thousand, two hundred twenty-one".