11522204545 has 12 divisors (see below), whose sum is σ = 14453944596. Its totient is φ = 8816989280.

The previous prime is 11522204543. The next prime is 11522204557. The reversal of 11522204545 is 54540222511.

11522204545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3087802624 + 8434401921 = 55568^2 + 91839^2 .

It is not a de Polignac number, because 11522204545 - 2¹ = 11522204543 is a prime.

It is a super-2 number, since 2×11522204545² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11522204543) 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 in 11 ways as a sum of consecutive naturals, for example, 2175466 + ... + 2180755.

It is an arithmetic number, because the mean of its divisors is an integer number (1204495383).

Almost surely, 2^11522204545 is an apocalyptic number.

It is an amenable number.

11522204545 is a deficient number, since it is larger than the sum of its proper divisors (2931740051).

11522204545 is an equidigital number, since it uses as much as digits as its factorization.

11522204545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356272 (or 4356249 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 11522204545 in words is "eleven billion, five hundred twenty-two million, two hundred four thousand, five hundred forty-five".