12052171804 has 36 divisors (see below), whose sum is σ = 21572132400. Its totient is φ = 5891666560.

The previous prime is 12052171763. The next prime is 12052171819. The reversal of 12052171804 is 40817125021.

12052171804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12052171804² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 3492672 + ... + 3496120.

It is an arithmetic number, because the mean of its divisors is an integer number (599225900).

Almost surely, 2^12052171804 is an apocalyptic number.

It is an amenable number.

12052171804 is a deficient number, since it is larger than the sum of its proper divisors (9519960596).

12052171804 is a wasteful number, since it uses less digits than its factorization.

12052171804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

Adding to 12052171804 its reverse (40817125021), we get a palindrome (52869296825).

It can be divided in two parts, 1205217 and 1804, that added together give a palindrome (1207021).

The spelling of 12052171804 in words is "twelve billion, fifty-two million, one hundred seventy-one thousand, eight hundred four".