12055420004 has 6 divisors (see below), whose sum is σ = 21096985014. Its totient is φ = 6027710000.

The previous prime is 12055419997. The next prime is 12055420007. The reversal of 12055420004 is 40002455021.

It is a happy number.

12055420004 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 only one way, i.e., 7745760100 + 4309659904 = 88010^2 + 65648^2 .

It is not an unprimeable number, because it can be changed into a prime (12055420007) 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 as a sum of consecutive naturals, namely, 1506927497 + ... + 1506927504.

It is an arithmetic number, because the mean of its divisors is an integer number (3516164169).

Almost surely, 2^12055420004 is an apocalyptic number.

It is an amenable number.

12055420004 is a deficient number, since it is larger than the sum of its proper divisors (9041565010).

12055420004 is a wasteful number, since it uses less digits than its factorization.

12055420004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013855005 (or 3013855003 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 12055420004 its reverse (40002455021), we get a palindrome (52057875025).

The spelling of 12055420004 in words is "twelve billion, fifty-five million, four hundred twenty thousand, four".