12211452445 has 16 divisors (see below), whose sum is σ = 15541540992. Its totient is φ = 9191223360.

The previous prime is 12211452401. The next prime is 12211452467. The reversal of 12211452445 is 54425411221.

It is not a de Polignac number, because 12211452445 - 2¹¹ = 12211450397 is a prime.

It is a super-3 number, since 3×12211452445³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 863367 + ... + 877396.

It is an arithmetic number, because the mean of its divisors is an integer number (971346312).

Almost surely, 2^12211452445 is an apocalyptic number.

It is an amenable number.

12211452445 is a deficient number, since it is larger than the sum of its proper divisors (3330088547).

12211452445 is a wasteful number, since it uses less digits than its factorization.

12211452445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740852.

The product of its digits is 12800, while the sum is 31.

Adding to 12211452445 its reverse (54425411221), we get a palindrome (66636863666).

The spelling of 12211452445 in words is "twelve billion, two hundred eleven million, four hundred fifty-two thousand, four hundred forty-five".