11210322211261 has 2 divisors, whose sum is σ = 11210322211262. Its totient is φ = 11210322211260.

The previous prime is 11210322211211. The next prime is 11210322211271. The reversal of 11210322211261 is 16211222301211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10766726250361 + 443595960900 = 3281269^2 + 666030^2 .

It is a cyclic number.

It is not a de Polignac number, because 11210322211261 - 2⁹ = 11210322210749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210322211211) 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, 5605161105630 + 5605161105631.

It is an arithmetic number, because the mean of its divisors is an integer number (5605161105631).

Almost surely, 2^{11210322211261} is an apocalyptic number.

It is an amenable number.

11210322211261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210322211261 is an equidigital number, since it uses as much as digits as its factorization.

11210322211261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 11210322211261 its reverse (16211222301211), we get a palindrome (27421544512472).

The spelling of 11210322211261 in words is "eleven trillion, two hundred ten billion, three hundred twenty-two million, two hundred eleven thousand, two hundred sixty-one".