11244540221 has 2 divisors, whose sum is σ = 11244540222. Its totient is φ = 11244540220.

The previous prime is 11244540217. The next prime is 11244540257. The reversal of 11244540221 is 12204544211.

11244540221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6618636025 + 4625904196 = 81355^2 + 68014^2 .

It is a cyclic number.

It is not a de Polignac number, because 11244540221 - 2² = 11244540217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11244540211) 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, 5622270110 + 5622270111.

It is an arithmetic number, because the mean of its divisors is an integer number (5622270111).

Almost surely, 2^11244540221 is an apocalyptic number.

It is an amenable number.

11244540221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11244540221 is an equidigital number, since it uses as much as digits as its factorization.

11244540221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 26.

The spelling of 11244540221 in words is "eleven billion, two hundred forty-four million, five hundred forty thousand, two hundred twenty-one".