12201545443044 has 48 divisors (see below), whose sum is σ = 29624627467008. Its totient is φ = 3905539492608.

The previous prime is 12201545443037. The next prime is 12201545443093. The reversal of 12201545443044 is 44034454510221.

It is a super-2 number, since 2×12201545443044² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12201545442993 and 12201545443011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204063937 + ... + 204123720.

It is an arithmetic number, because the mean of its divisors is an integer number (617179738896).

Almost surely, 2^{12201545443044} is an apocalyptic number.

It is an amenable number.

12201545443044 is an abundant number, since it is smaller than the sum of its proper divisors (17423082023964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12201545443044 is a wasteful number, since it uses less digits than its factorization.

12201545443044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408187764 (or 408187762 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

Adding to 12201545443044 its reverse (44034454510221), we get a palindrome (56235999953265).

The spelling of 12201545443044 in words is "twelve trillion, two hundred one billion, five hundred forty-five million, four hundred forty-three thousand, forty-four".