12012002604 has 108 divisors (see below), whose sum is σ = 35020528816. Its totient is φ = 3400717824.

The previous prime is 12012002591. The next prime is 12012002617. The reversal of 12012002604 is 40620021021.

12012002604 is a `hidden beast` number, since 1 + 201 + 200 + 260 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (12012002591) and next prime (12012002617).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 3215922 + ... + 3219654.

Almost surely, 2^12012002604 is an apocalyptic number.

12012002604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012002604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17510264408).

12012002604 is an abundant number, since it is smaller than the sum of its proper divisors (23008526212).

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

12012002604 is a wasteful number, since it uses less digits than its factorization.

12012002604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12012002604 its reverse (40620021021), we get a palindrome (52632023625).

The spelling of 12012002604 in words is "twelve billion, twelve million, two thousand, six hundred four".