12004221534 has 32 divisors (see below), whose sum is σ = 24196354560. Its totient is φ = 3970125312.

The previous prime is 12004221529. The next prime is 12004221539. The reversal of 12004221534 is 43512240021.

12004221534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12004221529) and next prime (12004221539).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004221539) 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 in 15 ways as a sum of consecutive naturals, for example, 1717054 + ... + 1724030.

It is an arithmetic number, because the mean of its divisors is an integer number (756136080).

Almost surely, 2^12004221534 is an apocalyptic number.

12004221534 is an abundant number, since it is smaller than the sum of its proper divisors (12192133026).

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

12004221534 is a wasteful number, since it uses less digits than its factorization.

12004221534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9184.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12004221534 its reverse (43512240021), we get a palindrome (55516461555).

The spelling of 12004221534 in words is "twelve billion, four million, two hundred twenty-one thousand, five hundred thirty-four".