12105044552 has 32 divisors (see below), whose sum is σ = 24447165600. Its totient is φ = 5600617344.

The previous prime is 12105044543. The next prime is 12105044557. The reversal of 12105044552 is 25544050121.

It is not an unprimeable number, because it can be changed into a prime (12105044557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919493 + ... + 932564.

It is an arithmetic number, because the mean of its divisors is an integer number (763973925).

Almost surely, 2^12105044552 is an apocalyptic number.

It is an amenable number.

12105044552 is an abundant number, since it is smaller than the sum of its proper divisors (12342121048).

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

12105044552 is a wasteful number, since it uses less digits than its factorization.

12105044552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852125 (or 1852121 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 12105044552 its reverse (25544050121), we get a palindrome (37649094673).

The spelling of 12105044552 in words is "twelve billion, one hundred five million, forty-four thousand, five hundred fifty-two".