12052421408 has 12 divisors (see below), whose sum is σ = 23728204710. Its totient is φ = 6026210688.

The previous prime is 12052421401. The next prime is 12052421413. The reversal of 12052421408 is 80412425021.

It can be written as a sum of positive squares in only one way, i.e., 9716439184 + 2335982224 = 98572^2 + 48332^2 .

It is not an unprimeable number, because it can be changed into a prime (12052421401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188319053 + ... + 188319116.

Almost surely, 2^12052421408 is an apocalyptic number.

It is an amenable number.

12052421408 is a deficient number, since it is larger than the sum of its proper divisors (11675783302).

12052421408 is an equidigital number, since it uses as much as digits as its factorization.

12052421408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376638179 (or 376638171 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 12052421408 its reverse (80412425021), we get a palindrome (92464846429).

The spelling of 12052421408 in words is "twelve billion, fifty-two million, four hundred twenty-one thousand, four hundred eight".