12120412044 has 24 divisors (see below), whose sum is σ = 30456420400. Its totient is φ = 3729357504.

The previous prime is 12120412043. The next prime is 12120412049. The reversal of 12120412044 is 44021402121.

It is a self number, because there is not a number n which added to its sum of digits gives 12120412044.

It is not an unprimeable number, because it can be changed into a prime (12120412043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38847319 + ... + 38847630.

Almost surely, 2^12120412044 is an apocalyptic number.

It is an amenable number.

12120412044 is an abundant number, since it is smaller than the sum of its proper divisors (18336008356).

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

12120412044 is a wasteful number, since it uses less digits than its factorization.

12120412044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77694969 (or 77694967 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12120412044 its reverse (44021402121), we get a palindrome (56141814165).

The spelling of 12120412044 in words is "twelve billion, one hundred twenty million, four hundred twelve thousand, forty-four".